Cardarine, also known as GW-501516 or GW1516, is a synthetic PPARδ agonist that has attracted substantial research interest for its effects on fatty-acid metabolism, energy utilization, and exercise-related metabolic pathways. Although often discussed alongside SARMs, Cardarine is not a SARM because it does not act through the androgen receptor.

Product Information

Cardarine selectively activates peroxisome proliferator-activated receptor delta (PPARδ), a nuclear receptor involved in regulating lipid metabolism and energy expenditure. Research has demonstrated that PPARδ activation can increase fatty-acid oxidation and alter metabolic pathways in skeletal muscle.

The compound became particularly well known for research involving endurance and metabolic performance. However, its development was discontinued after long-term animal studies raised serious safety concerns, and it has no established therapeutic use in humans.

How It Works

Cardarine activates PPARδ, which regulates genes involved in fatty-acid utilization and energy metabolism. By shifting cellular metabolism toward greater lipid utilization, GW-501516 has been investigated for its ability to influence endurance, metabolic flexibility, and exercise-related adaptations.

POTENTIAL BENEFITS

1. Endurance Research

Cardarine is particularly well known for its potential effects on endurance-related pathways. PPARδ activation promotes metabolic changes associated with greater oxidative capacity, making GW-501516 a widely studied compound in research examining prolonged physical performance.

2. Fatty-Acid Oxidation

One of the central research interests surrounding Cardarine is its ability to influence fatty-acid oxidation. By activating PPARδ, the compound can alter the expression of genes involved in lipid utilization and energy production, making it valuable for metabolic research.

3. Metabolic Research

PPARδ is involved in several aspects of energy metabolism, including lipid handling and skeletal-muscle fuel utilization. Cardarine has therefore been studied as a tool for investigating metabolic flexibility and how changes in cellular fuel preference affect overall energy regulation.

4. Exercise-Metabolism Research

Research involving GW-501516 has helped researchers examine how pharmacological activation of PPARδ can produce metabolic adaptations associated with exercise. This makes Cardarine particularly relevant to studies investigating the relationship between energy metabolism, skeletal muscle, and endurance performance.

5. Lipid-Metabolism Research

Cardarine's effects on PPARδ have generated interest in lipid-related research, including fatty-acid utilization and cholesterol metabolism. Its ability to alter metabolic gene expression provides researchers with a useful model for studying how nuclear-receptor activation can influence lipid handling throughout the body.

Dosage

There is no medically established human dosage for Cardarine.

A PubMed-indexed doping-control study reports that oral performance-enhancement use has involved 10–20 mg per day for approximately 6–8 weeks. These figures describe reported use rather than an established safe or recommended human dose.

Community reports also commonly mention 10–20 mg per day, with some users reporting 10 mg as a starting amount. These reports are anecdotal and should not be interpreted as medically validated dosing.

Side Effects

Cardarine has important safety concerns, particularly because of findings from long-term animal research. Potential concerns include:

• Unknown long-term human safety
• Possible liver-related effects
• Unknown cardiovascular consequences
• Potential metabolic effects
• Serious toxicity concerns identified in animal studies

Long-term animal studies raised concerns about tumor development, which contributed to the discontinuation of Cardarine's drug development. The compound also remains prohibited by the World Anti-Doping Agency.

References

• Dressel U, et al. The peroxisome proliferator-activated receptor beta/delta agonist, GW501516, regulates the expression of genes involved in lipid catabolism and energy uncoupling in skeletal muscle cells. Mol Endocrinol. 2003. PMID: 14525954. PubMed
• Zembron-Lacny A, et al. Metabolic modulators of the exercise response: doping control analysis of an agonist of the peroxisome proliferator-activated receptor δ (GW501516) and AICAR. Biol Sport. 2014. PMID: 25179079. PubMed
• Testing for GW501516 (Cardarine) in human hair using LC/MS-MS and confirmation by LC/HRMS. Drug Test Anal. 2020. PMID: 32298044. PubMed
• Sanchis-Gomar F, et al. PPARδ Modulation by GW501516: An Unsuccessful Exercise Mimetic. Clin Pharmacol Ther. 2017. PMID: 28124448. PubMed

Note: BehemothLabz does not sell this product. Purchase links on this page may direct to third-party suppliers through affiliate links.

re-shared by Ahmad 2026-09-03 as "the rewrite"; flagged then as unchanged/still "Liquid"-titled

(see build-manifest.md row 9). Re-read 2026-09-04: content has since changed — H1 is now just

"Cardarine (GW-501516)" (no "Liquid"), body text differs from the live Liquid product's

description throughout. Ahmad appears to have edited the doc in place after being told it was

wrong (same pattern as the YK-11 fix). Now generic/form-agnostic, which fits today's standing

rule (generic PD -> one simple product, never per-variation) — no longer blocked on "needs an

actual capsule-form rewrite." -->

YK-11 is a synthetic steroidal compound investigated for its activity at the androgen receptor and is commonly grouped within the broader SARM category. It has attracted particular interest because laboratory research has linked YK-11 to androgen-receptor activation and increased follistatin expression, creating interest in its potential role in muscle-related research.

Product Information

YK-11 is structurally distinct from many of the non-steroidal SARMs commonly discussed in research and performance circles. Laboratory studies have demonstrated that it acts as a partial agonist of the androgen receptor and produces gene-selective androgen-receptor activity.

Additional research using muscle-cell models found that YK-11 increased follistatin expression and promoted myogenic differentiation, with the researchers suggesting that follistatin induction contributes to its anabolic activity.

How It Works

YK-11 interacts with the androgen receptor and promotes its movement into the cell nucleus, where androgen-receptor signaling can influence gene expression. Research has also shown that YK-11 increases follistatin expression in muscle-cell models, providing a potential connection between androgen signaling and pathways involved in muscle differentiation.

POTENTIAL BENEFITS

1. Muscle Growth Research

YK-11 has attracted significant research interest because of its anabolic activity in laboratory models. Its androgen-receptor activity and effects on myogenic signaling make it particularly relevant to research examining mechanisms involved in muscle-cell development and lean-tissue regulation.

2. Follistatin-Related Research

One of YK-11's most distinctive characteristics is its reported influence on follistatin expression. Since follistatin is involved in regulating members of the TGF-β family, including myostatin, this pathway has become a major area of interest surrounding YK-11's potential anabolic effects.

3. Androgen Receptor Research

YK-11 provides researchers with an unusual model for studying selective androgen-receptor activity. Its partial agonist behavior and gene-selective effects distinguish it mechanistically from conventional anabolic steroids and make it useful for investigating androgen-responsive pathways.

4. Myogenic Differentiation Research

Studies in C2C12 muscle cells found that YK-11 increased expression of important myogenic regulatory factors, including MyoD, Myf5, and myogenin. These findings have contributed to interest in YK-11 for research into muscle-cell differentiation and anabolic signaling.

5. Anabolic Signaling Research

The combination of androgen-receptor activity and follistatin-related signaling gives YK-11 a particularly interesting research profile. Researchers can use these pathways to investigate how androgenic signaling interacts with muscle-growth mechanisms and regulatory proteins involved in skeletal muscle development.

Dosage

There is no established clinical human dosage for YK-11.

Online research-chemical and bodybuilding communities commonly report approximately 5–15 mg per day, although reported protocols vary considerably. These amounts are community-reported rather than medically established dosing recommendations, and there is insufficient controlled human research to establish an evidence-based dose.

Side Effects

Human safety data for YK-11 are very limited. Potential concerns associated with androgen-receptor-active compounds may include:

• Hormonal suppression
• Changes in testosterone and reproductive hormones
• Acne and oily skin
• Changes in hair growth or hair loss in susceptible individuals
• Changes in lipid profiles
• Possible liver-related effects
• Mood or libido changes

References

• Kanno Y, et al. (17α,20E)-17,20-[(1-methoxyethylidene)bis(oxy)]-3-oxo-19-norpregna-4,20-diene-21-carboxylic acid methyl ester (YK11) is a partial agonist of the androgen receptor. Biol Pharm Bull. 2011. PMID: 21372378.PubMed
• Kanno Y, et al. Selective androgen receptor modulator, YK11, regulates myogenic differentiation of C2C12 myoblasts by follistatin expression. Biol Pharm Bull. 2013. PMID: 23995658.PubMed

Note: BehemothLabz does not sell this product. Purchase links on this page may direct to third-party suppliers through affiliate links.

S4 Andarine and LGD 4033 are both selective androgen receptor modulators (SARMs). These compounds exhibit notable anabolic activity relevant to skeletal muscle development, which makes them of significant interest in preclinical studies.

Co-administration of S4 Andarine and LGD-4033 has demonstrated potential efficacy in promoting increases in skeletal muscle mass, which may contribute to measurable improvements in neuromuscular function.

• S4 and LGD 4033 capsules contain:
  S4 – 30mg
  LGD4033 – 10mg
• CAS Number is stated as 401900-40-1 for S4; 1165910-22-4 for LGD4033
• Molar Mass is 441.363 g·mol−1 for S4; 338.253 g·mol−1 for LGD4033
• It has a Chemical Formula as C19H18F3N3O6 for S4; C14H12F6N2O for LGD4033
• IUPAC Name is (2S)-3-(4-acetamido-phenoxy)-2-hydroxy-2-methyl-N-(4-nitro-3-trifluoromethyl-phenyl)-propionamide for S4; 4-[(2R)-2-[(1R)-2,2,2-trifluoro-1-hydroxyethyl]pyrrolidin-1-yl]-2-(trifluoromethyl)benzonitrile for LGD4033
• Also known by Synonyms as Acetamidoxolutamide, Androxolutamide, GTx-007 for S4; VK5211; LGD-4033 for LGD4033

Packaged in an air-sealed mylar bag. Keep contents sealed and stored in a cool, dry place.  Items are shipped in a plain envelope or bubble mailer within 24-48 hours (or the next business day).

Note: For researchers looking to explore related compounds, we offer a wide range of SARMs Capsules, including individual S4 Andarine Capsules and S4 Andarine + Cardarine Capsules. Be sure to check out these formulations for comprehensive research possibilities.

What is S4 Andarine?

Andarine S4 is a SARM that was developed for its potential role in promoting skeletal muscle hypertrophy and mitigating muscle atrophy. It binds to androgen receptors, which promotes peptide synthesis and myogenic signaling pathways.

The commonly investigated dose range for Andarine S4 is approximately 50 mg daily, with a half-life of 4–6 hours. Documented adverse effects in studies include alterations in visual perception and the development of benign prostatic enlargement.

What is LGD-4033?

LGD-4033 is yet another SARM with demonstrated anabolic potential in skeletal muscle. Research shows it may facilitate the accrual of fat-free mass by binding to androgen receptors in the body. It has a half-life of 24–36 hours.

LGD-4033 has been shown to promote increases in skeletal muscle volume, enhance muscular force output, and support improvements in bone mineral density. It is considered a safer pharmacological option compared to traditional anabolic agents, with a relatively low incidence of adverse events.

How do S4 Andarine and LGD-4033 Work Together?

Since both are Selective Androgen Receptor Modulators (SARMs), when combined, Andarine S4 and LGD-4033 exhibit a synergistic effect that may enhance muscular definition and reduce adipose tissue accumulation in visceral and subcutaneous regions in animal subjects. The combination potentially promotes protein synthesis, resulting in more pronounced hypertrophic responses.

Andarine S4 also shows potential in facilitating lipid metabolism and preserving lean mass during caloric restriction. LGD-4033 may contribute to myogenic progression, improved bone mineralization, and attenuation of muscle in research models.

The commonly utilized experimental protocol for the blend in research models involves a 50/50 ratio comprising 25 mg of Andarine S4 and 10 mg of LGD-4033 administered daily over an eight- to twelve-week period.

Why Buy S4 Andarine + LDG- 4033 Capsules From BehemothLabz?

BehemothLabz has established itself as a reliable and reputable source for research chemicals since 2014. We take pride in offering the highest-quality products that are backed by independent, third-party-issued Certificates of Analysis for identification, purity, and concentration.

Our commitment to quality extends to every aspect of our business, from same-day processing to free shipping on all orders over $100 and our satisfaction guarantee.

At BehemothLabz, we understand the importance of having access to the best compounds for research purposes. Our team is dedicated to providing exceptional customer service and ensuring that our customers have access to the compounds they need to conduct groundbreaking research.

We also offer international shipping to our customers around the world. Our team is committed to ensuring that your order arrives after research is needed to fully understand its mechanisms of action and potential applications in the treatment of various conditions.

It is critical to purchase Best S4 Andarine +LGD 4033 Capsules in quantity from reputable vendors such as BehemothLabz to ensure purity and quality. 

BEHEMOTHLABZ DISCLAIMER

Please make sure you go through the Terms and Conditions, and please familiarize yourself with it as it is important. Please research the scientific uses of this product before making any purchases. Make note that the packaging and labels of the product may differ from those shown on the website.
Buying the product means you agree with our Terms and Conditions. You can contact our awesome customer service team at support@behemothlabz.com if you are not fully satisfied with the product.

Customer satisfaction is our number one priority!

ATTENTION

All BehemothLabz products are strictly for LABORATORY AND RESEARCH PURPOSES ONLY. They are not to be used for any human or veterinary purposes.

• S4 Andarine + Stenabolic + Cardarine Combined Formula capsules contain:
• 30mg S4 Andarine
• 10mg SR-9009
• 10mg Cardarine

Our combination of S4 Andarine, SR 9009, and Cardarine are research chemicals designed to investigate potential applications for promoting lean tissue preservation and metabolic modulation. S4 Andarine is a selective androgen receptor modulator (SARM) that may be studied for its potential in mitigating muscle atrophy and facilitating anabolic signaling pathways.

SR 9009 is a PPARδ agonist hypothesized to enhance lipid oxidation rates and may also contribute to improvements in aerobic capacity. Cardarine, another PPARδ agonist, is being examined for its potential to regulate fatty acid metabolism and augment exercise tolerance in preclinical models. Together, these compounds are under investigation for their collective role in supporting anabolic homeostasis and reductions in adipose tissue. If validated through further research, this combination may have translational relevance for physically active populations in controlled settings.

Note: Researchers interested in further studies may explore similar capsule formulations available in our SARMs Capsules Collection. Additionally, for those investigating the effects of S23, consider reviewing our S-23 Capsules for comparative research.

Disclaimer: Please note that this information is for educational and research purposes only and does not constitute medical advice.

S4 Andarine - Product Information

Andarine S4 belongs to a class of compounds called selective androgen receptor modulators (SARMs), compounds that have the potential to bind to androgen receptors. Androgen receptors are the primary site of action for endogenous androgenic steroids.

Due to its potential role as a biochemical precursor to endogenous androgens, it was initially investigated in research models for addressing reduced bone mineral density and skeletal muscle atrophy.

• CAS Number is stated as 401900-40-1
• Molar Mass is 441.363 g·mol−1
• The chemical formula is C19H18F3N3O6.
• IUPAC Name is (2S)-3-(4-acetamido-phenoxy)-2-hydroxy-2-methyl-N-(4-nitro-3-trifluoromethyl-phenyl)-propionamide
• Also known by Synonyms as Acetamidoxolutamide, Androxolutamide, GTx-007.

SR 9009 - Product Information

SR9009, also known as Stenabolic, is an agonist of the Rev-ErbA protein. It has demonstrated the potential to enhance aerobic capacity, promote lipid metabolism, support cardiovascular function, and reduce overall body mass, systemic inflammation, and serum lipid concentrations in murine models.

It was initially researched by Professor Thomas Burris of the Scripps Research Institute for its ability to increase mitochondrial biogenesis in skeletal muscle tissue.

• CAS Number is stated as 1379686-30-2
• Molar Mass is 437.94026 g·mol−1
• It has a Chemical Formula of C20H24ClN3O4S.
• IUPAC Name is ethyl-3-(((4-chlorobenzyl)((5-nitrothiophen-2-yl)methyl)amino)methyl)pyrrolidine-1-carboxylate

Cardarine GW 501516 - Product Information

Cardarine, or GW-501516, is a PPAR agonist. Controlled investigations in research models have indicated that Cardarine may exert favorable effects on various metabolic dysfunctions, including cellular redox imbalance, lipid profile irregularities, excess adiposity, and impaired glucose homeostasis.

Preclinical studies in animal models have demonstrated that Cardarine may improve endurance capacity, stimulate mitochondrial lipid utilization, and elevate high-density lipoprotein (HDL) concentrations. GW-501516 has also shown potential to reduce low-density lipoprotein (LDL) levels, circulating triglyceride concentrations under fasting conditions, and baseline insulin levels in intact murine subjects.

• CAS Number is stated as 317318-70-0
• Molar Mass is 453.49 g·mol−1
• It has a Chemical Formula of C21H18F3NO3S2.
• IUPAC Name is {4-[({4-methyl-2-[4-(trifluoromethyl)phenyl]-1,3-thiazol-5-yl}methyl)sulfanyl]-2-methylphenoxy}acetic acid
• It is known by synonyms as GW-501, 516, GW1516, GSK-516, Cardarine

How Do S4 + SR 9009 + Cardarine Capsules Work?

S4 Andarine is a selective androgen receptor modulator (SARM) that is believed to function through high-affinity binding to androgen receptors in skeletal muscle and osseous tissue, which may facilitate skeletal muscle hypertrophy and improve muscular force output while concurrently modulating adipose tissue distribution. It is also hypothesized to exert beneficial effects on bone mineral density.

SR9009, on the other hand, is a synthetic molecule that is believed to work by activating a protein called Rev-ErbA, which may potentially contribute to enhanced aerobic capacity, increased cellular energy availability, and elevated basal metabolic rate. This is achieved by promoting mitochondrial biogenesis in muscle cells, which leads to an upregulation of adenosine triphosphate (ATP) synthesis and mitigation of oxidative stress.

Cardarine is a peroxisome proliferator-activated receptor (PPAR) agonist that is believed to function by potentially increasing lipid oxidation for energy production. It has been studied for its role in improving exercise tolerance in experimental models, supporting sustained energy output under caloric restriction. Additionally, Cardarine has demonstrated potential to modulate lipid profiles, which may indicate a reduced risk of cardiovascular-related markers in research settings.

Safety and Side Effects

The safety of administering SR9009, S4 Andarine, and Cardarine has not been fully established, and these compounds are not approved for use in clinical settings by regulatory agencies such as the FDA. Some observed outcomes in preclinical models include alterations in hepatic biomarkers, endocrine disruption, cardiovascular irregularities, and neurocognitive effects.

In addition, prolonged exposure to these compounds in research settings may be associated with elevated risk markers for neoplastic transformations. It is important to note that unsanctioned use outside controlled experimental protocols may significantly elevate the likelihood of adverse biological responses.

BehemothLabz Disclaimer

Please make sure you go through the Terms and Conditions, and please familiarize yourself with it as it is important. Please research the scientific uses of this product before making any purchases. Make note that the packaging and labels of the product may differ from those shown on the website.
Buying the product means you agree with our Terms and Conditions. You can contact our awesome customer service team at support@behemothlabz.com if you are not fully satisfied with the product. Customer satisfaction is our number one priority!

ATTENTION: All BehemothLabz products are strictly for LABORATORY AND RESEARCH PURPOSES ONLY. They are not to be used for any human or veterinary purposes.

• S4 Andarine Cardarine Combined Formula contains:
  S4 – 30mg
  Cardarine – 10mg
• CAS Number is stated as 401900-40-1 for S4 Andarine; 317318-70-0 for Cardarine
• Molar Mass is 441.363 g·mol−1 for S4 Andarine; 453.49 g·mol−1 for Cardarine
• It has a Chemical Formula as C19H18F3N3O6 for S4 Andarine; C21H18F3NO3S2 for Cardarine
• IUPAC Name is (2S)-3-(4-acetamido-phenoxy)-2-hydroxy-2-methyl-N-(4-nitro-3-trifluoromethyl-phenyl)-propionamide for S4 Andarine; {4-[({4-methyl-2-[4-(trifluoromethyl)phenyl]-1,3-thiazol-5-yl}methyl)sulfanyl]-2-methylphenoxy}acetic acid for Cardarine
• Also known by Synonyms as Acetamidoxolutamide, Androxolutamide, GTx-007, S-4 for S4 Andarine; GW-501, 516, GW1516, GSK-516 for Cardarine.

What is S4 Andarine?

Andarine, also known as S4, is a selective androgen receptor modulator (SARM) that works differently than anabolic steroids. It is currently under preclinical and clinical investigation and has not yet received approval from the US Food and Drug Administration (FDA). Andarine may optimize physical performance in research models, address musculoskeletal and cachectic disorders such as osteoporosis and muscle wasting syndrome, and promote prostate health in test models. However, further controlled clinical trials are needed to substantiate these potential applications.

What is Cardarine?

Cardarine, also known as GW501516, is a synthetic compound that functions as a selective agonist of a specific protein called PPAR-delta. This protein plays a crucial role in modulating metabolic pathways and energy homeostasis. Cardarine was developed by mimicking the structure of the ligand binding site, making it highly specific in its actions. Its selective activation of PPAR-delta may offer investigational benefits for enhancing aerobics, modulating inflammatory responses, and facilitating lipolysis.

How Do S4 Andarine + Cardarine Work Together?

S-4 Andarine and Cardarine may work together in a complementary way to enhance exercise performance capacity and improve body composition in preclinical research models. The combination of S-4 and Cardarine can result in increased fat-free mass, enhanced aerobic capacity, and reduced adiposity.

S-4 functions as a selective androgen receptor modulator (SARM) because it targets and binds to androgen receptors in the research subject in a specific way. There are androgen receptors in many different tissues, such as skeletal muscle, bone, and adipose tissue. When S-4 binds to androgen receptors in muscle tissue, it activates several intracellular pathways that facilitate protein anabolism and accelerate muscular hypertrophy.

Cardarine works by activating PPARδ, a nuclear receptor that plays a key role in modulating energy metabolism in the research subject. PPARδ is highly expressed in skeletal muscle, where it regulates the oxidation of lipids as a primary energy source.

BehemothLabz Disclaimer

Please make sure you go through the Terms and Conditions, and please familiarize yourself with it as it is important. Please research the scientific uses of this product before making any purchases. Make note that the packaging and labels of the product may differ from those shown on the website.
Buying the product means you agree with our Terms and Conditions. You can contact our awesome customer service team at support@behemothlabz.com if you are not fully satisfied with the product. Customer satisfaction is our number one priority!

ATTENTION: All BehemothLabz products are strictly for LABORATORY AND RESEARCH PURPOSES ONLY. They are not to be used for any human or veterinary purposes.

• Ostarine + MK-677 capsules contain:
  Ostarine – 10mg
  MK-677 – 10mg

BehemothLabz's combination of Ostarine and MK 677 capsules is being studied to possibly facilitate the development of lean muscle hypertrophy and enhance skeletal muscle anabolism in the research subject.

Ostarine is a selective androgen receptor modulator (SARM) allegedly capable of inducing muscle hypertrophy. At the same time, MK 677 is a growth hormone secretagogue that may potentially augment endogenous growth hormone secretion.

Together, these capsules are believed to have future potential for stimulating muscular hypertrophy. They may possibly even have the potential to optimize test model's composition.

In addition to potentially facilitating muscle hypertrophy by targeting specific myofibrillar tissue, the combination of Ostarine and MK 677 may also help to optimize sleep architecture and stimulate the secretion of growth hormone, which is critical for investigational studies on the maintenance of bone mineral content.

Ostarine - Product Information

Ostarine, also known as MK-2866, is a selective androgen receptor modulator (SARM) that has gained popularity among researchers for its potential investigational advantages.

Ostarine is researched for its believed potential to facilitate lean muscle hypertrophy while reducing overall adipose tissue and visceral fat deposition.

Preliminary research has shown that Ostarine can potentially be tolerated by research subjects, with negligible adverse effects. Additionally, Ostarine is believed to potentially have a beneficial impact on skeletal, which could lead to enhancing bone remodeling and ultimately resulting in increased bone strength.

Behemoth Labz sells Ostarine for laboratory research use only.

• CAS Number is stated as 841205-47-8
• Molar Mass is 389.334 g·mol−1
• It has a Chemical Formula of C19H14F3N3O3
• IUPAC Name is ((2S)-3-(4-cyanophenoxy)-N-[4-cyano-3-(trifluoromethyl)phenyl]-2-hydroxy-2-methylpropanamide)
• Also known by Synonyms as GTx-024; MK-2866; Ostarine; S-22

MK 677 - Product Information

Ibutamoren MK-677 is a growth hormone secretagogue initially designed for animal pediatrics with growth hormone deficiency and has been researched for its investigated advantages in facilitating muscle hypertrophy and accelerating muscle regeneration.

Scientific research has shown that MK-677 may stimulate myocyte proliferation and induce substantial muscle hypertrophy while also facilitating adipose tissue reduction. It was also shown to potentially enhance endogenous growth hormone secretion and seemed to have a beneficial impact on skeletal muscle mass, bone mineral density, and sleep architecture.

Overall, MK-677 is a promising option for researchers investigating the promotion of muscle hypertrophy, optimization of body composition, and improvements in overall physical capacity.

• CAS Number is stated as 159634-47-6
• Molar Mass is 528.67 g·mol−1
• It has a Chemical Formula of C27H36N4O5S
• IUPAC Name is 2-amino-2-methyl-N-[1-(1-methylsulfonylspiro[2H-indole-3,4′-piperidine]-1′-yl)-1-oxo-3-phenylmethoxypropan-2-yl]propanamide
• Also known by Synonyms as MK-677; MK-0677; L-163,191; Oratrope

How Do Ostarine MK 677 Capsules Work?

Ostarine and MK 677 work through different mechanisms in preclinical research models.

It may selectively bind to androgen receptors, resulting in potentially enhanced protein anabolism and skeletal muscle hypertrophy, as demonstrated in investigational studies.

On the other hand, MK 677 is a growth hormone secretagogue that induces the secretion of growth hormone (GH) and insulin-like growth factor 1 (IGF-1) in clinical research models.

This increase in GH and IGF-1 levels may potentially lead to optimized body composition, including increased fat-free mass, reduction in adipose tissue, and enhanced bone mineral density, as observed in longitudinal research studies.

MK 677 achieves this effect by mimicking the action of the ghrelin hormone, which is known to induce GH release, in preclinical trials.

Overall, combining Ostarine and MK 677 may have the potential research applications of facilitating myogenesis and enhancing lipolysis through their respective mechanisms of action, as evidenced in systematic investigations.

Note: If you're conducting research on selective androgen receptor modulators (SARMs) or growth hormone secretagogues, be sure to explore our SARMs Capsules Collection for various research applications. Additionally, for more detailed insights into individual compounds, you may want to check out our Ostarine MK-2866 Capsules or our Ostarine + Cardarine Capsules, both of which are designed for laboratory research purposes.

BehemothLabz Disclaimer

Please make sure you go through the Terms and Conditions, and please familiarize yourself with it as it is important. Please research the scientific uses of this product before making any purchases. Make note that the packaging and labels of the product may differ from those shown on the website.
Buying the product means you agree with our Terms and Conditions. You can contact our awesome customer service team at support@behemothlabz.com if you are not fully satisfied with the product. Customer satisfaction is our number one priority!

ATTENTION: All BehemothLabz products are strictly for LABORATORY AND RESEARCH PURPOSES ONLY. They are not to be used for any human or veterinary purposes.

Ostarine (MK2866) + Cardarine (GW501516) capsule is a co-formulated investigational agent.  Each 20mg capsule contains a precise formulation of 10mg Ostarine and 10mg Cardarine, providing equimolar distribution for experimental consistency. Ostarine is a pharmacological agent categorized as a Selective Androgen Receptor Modulator (SARM). On the other hand, Cardarine is a Peroxisome Proliferator-Activated Receptor Delta Agonist (PPARδ Agonist).

Like other SARMs, Ostarine may exhibit selective affinity for androgen receptors in skeletal and osseous tissues. After binding, it emulates androgenic signaling pathways and shows some potential benefits. Such potential benefits may include an enhancement of fat-free mass and myogenic hypertrophy. On the contrary, Cardarine may induce mitochondrial beta-oxidation of fatty acids,  diminishing adipose tissue accumulation. 

How Do they Work?

Ostarine (MK-2866) – A SARM (Selective Androgen Receptor Modulator) binds to androgen receptors in muscle and Bone and initiates ribosomal translation and anabolic protein turnover.

Cardarine (GW-501516) – A PPARδ Agonist (Not a SARM) activates PPARδ (Peroxisome Proliferator-Activated Receptor Delta) and i enhances mitochondrial lipid catabolism.

Properties of Ostarine (MK2866): 

• Chemical Formula: C19H14F3N3O3  
• Synonym: Ostarine-d4, Enobosarm-d4
• IUPAC-Name: (2S)-3-(4-cyano-2,3,5,6-tetradeuteriophenoxy)-N-[4-cyano-3-(trifluoromethyl)phenyl]-2-hydroxy-2-methylpropanamide
• Molar Mass: 389.3 g/mol
• CAS Number: 841205-47-8
• PubChem CID: 45107712
• Shelf Life: 36 months 

Properties of Cardarine (GW501516): 

• Chemical Formula: C21H18F3NO3S2
• Synonym: GW-501,516
• IUPAC-Name: 2-[2-methyl-4-[[4-methyl-2-[4-(trifluoromethyl)phenyl]-1,3-thiazol-5-yl]methylsulfanyl]phenoxy]acetic acid
• Molar Mass: 453.5 g/mol
• CAS Number: 317318-70-0
• PubChem CID: 9803963
• Shelf Life: 36 months

Why Choose to Buy Ostarine(MK2866) + Cardarine(GW501516) from BehemothLabz?

Finding a reliable and affordable place in the world of online shopping is challenging. As the market is filled with various vendors offering low-quality products at high prices. Therefore, we, BehemothLabz, not only offer affordable Ostarine and Cardarine for sale but also prioritize quality, purity, and lab testing. With excellent customer satisfaction and 24/7 availability, we ensure to fulfill the queries, needs, and requirements of customers.

Therefore, you should stop looking for the ideal place where you can buy Ostarine and Cardarine combined formula online. 

Order now and buy the Ostarine and Cardarine combined formula online at a discounted price.

Note: For an expanded selection of research-based compounds, explore our range of SARMs Capsules. Additionally, for other variations, check out our Ostarine MK-677 Capsules, LGD4033 + RAD140 + YK11 Capsules and MK-677 Ibutamoren Capsules. Each product is tested for purity and quality to ensure reliable research applications.

BehemothLabz Disclaimer

Please make sure you go through the Terms and Conditions, and please familiarize yourself with them, as they are important. Please research the scientific uses of this product before making any purchases. Make note that the packaging and labels of the product may differ from those shown on the website.
Buying the product means you agree with our Terms and Conditions. You can contact our awesome customer service team at support@behemothlabz.com if you are not fully satisfied with the product. Customer satisfaction is our number one priority!

ATTENTION: All BehemothLabz products are strictly for LABORATORY AND RESEARCH PURPOSES ONLY. They are not to be used for any human or veterinary purposes.

Ostarine, also referred to as MK 2866, is a common Selective Androgen Receptor Modulator (SARM). MK 2866 targets the specific receptors. These receptors may include those localized in skeletal muscle and osseous tissues. During the mechanism, this compound may engage endogenous androgenic signaling cascades in experimental systems. This activity has been linked with alterations in muscle morphology, bone matrix mineralization, and other physiological parameters.

Working Mechanism of Ostarine (MK-2866)

Ostarine (MK-2866) functions as a selective androgen receptor modulator that binds with high affinity to androgen receptors in experimental systems. This leads to receptor activation and dissociation of associated proteins. The receptor–ligand complex then translocates into the nucleus, where it interacts with androgen response elements to regulate gene transcription.

This process modulates downstream signaling pathways, including ERK1/2 and PI3K/Akt/mTOR, which are associated with cellular proliferation, differentiation, and protein synthesis in research models.

Chemical Properties of Ostarine 

• Chemical Formula: C19H14F3N3O3
• Synonym: Ostarine (MK-2866), Mk2866, Ostarine, GTx-024, Enobosarm. 
• IUPAC-Name: (2S)-3-(4-cyano-2,3,5,6-tetradeuteriophenoxy)-N-[4-cyano-3-(trifluoromethyl)phenyl]-2-hydroxy-2-methylpropanamide
• Molar Mass: 393.4 g/mol
• CAS Number: 841205-47-8
• PubChem CID: 45107712
• Shelf Life: 36 months

Research Findings on Ostarine (MK-2866)

Ostarine is studied in experimental models for its interaction with androgen receptor signaling in cellular systems. Studies show that it binds with strong affinity to androgen receptors and modulates pathways involved in cell proliferation and differentiation. For example, in vitro and computational research have observed its binding behavior and potential influence on androgen receptor–related signaling in tumor cell models.

Another key research application of Ostarine involves its role in muscle cell biology and differentiation studies. Experimental findings show that it activates androgen receptor–mediated pathways such as ERK1/2 signaling. This results in increased expression of myogenic regulatory factors (e.g., MyoD and myogenin) in cultured muscle cells. These findings support its use in laboratory research focused on cellular differentiation, gene expression regulation, and skeletal muscle signaling mechanisms.

Why Choose BehemothLabz to Buy Ostarine (MK-2866) Liquid? 

When it comes to buying Ostarine Mk-2866 online, dozens of suppliers are present that offer Ostarine (Enobosarm) for sale. However, very few suppliers are trustworthy and reliable. Behemoth Labz is one of them and stands out at the top in the online market. 

BehemothLabz not only offers Ostarine for sale but also ensures quality and purity. On top of that, it offers Ostarine for sale in all forms, like liquid, capsules, and also parenteral solution. The availability of all SARMs has made this place an excellent and top-tier seller. Moreover, with fast shipping mechanisms and excellent customer satisfaction, you can trust BehemothLabz. 

Note: For researchers looking to expand their studies, BehemothLabz also offers MK-2866 for sale. You can also check out LGD-4033 Ligandrol and OTR-AC Liquid to discover more research compounds tailored to various experimental needs.

Disclaimer

All BehemothLabz products are strictly for LABORATORY AND RESEARCH PURPOSES ONLY. They are not to be used for any human or veterinary purposes.

Please make sure you go through the Terms and Conditions, and please familiarize yourself with them as they are important. Do research on the scientific uses of this product before making any purchases. Make note that the packaging and labels of the product may differ from those shown on the website.

Buying the product means you agree to our Terms and Conditions. You can contact our awesome customer service team at support@behemothlabz.com if you are not fully satisfied with the product. Customer satisfaction is our number one priority!

All BehemothLabz products are strictly for LABORATORY AND RESEARCH PURPOSES ONLY. They are not to be used for any human or veterinary purposes.

Reference Links

PubChem. (2026). Ostarine(MK-2866). Nih.gov; PubChem. https://pubchem.ncbi.nlm.nih.gov/compound/Ostarine_MK-2866

‌Leciejewska, N., Kołodziejski, P. A., Sassek, M., Nogowski, L., Małek, E., & Pruszyńska-Oszmałek, E. (2022). Ostarine-Induced Myogenic Differentiation in C2C12, L6, and Rat Muscles. International Journal of Molecular Sciences, 23(8), 4404. https://doi.org/10.3390/ijms23084404

Sharma, S., Saini, S., Chadha, V. D., Saini, A., & Dhawan, D. K. (2025). A Computational and In Vitro Appraisal of Ostarine to Target Androgen Receptor in Glioma C6 Cells. Cell Biochemistry and Biophysics, 83(4), 4695–4709. https://doi.org/10.1007/s12013-025-01797-0

Leciejewska, N., Kołodziejski, P. A., Sassek, M., Nogowski, L., Małek, E., & Pruszyńska-Oszmałek, E. (2022). Ostarine-Induced Myogenic Differentiation in C2C12, L6, and Rat Muscles. International Journal of Molecular Sciences, 23(8), 4404. https://doi.org/10.3390/ijms23084404

The LGD 4033 + RAD 140 + Yk 11 capsules for sale from Behemoth Labz are intended for laboratory research purposes only and are not for human consumption.

We also offer LGD 4033 + RAD 140 + YK-11 in liquid form where you can find more information regarding this research compound.

• LGD 4033 RAD140 YK11 capsules contain:
  LGD4033 – 15mg
  Rad140 – 30mg
  YK11 – 10mg
• CAS Number is stated as 1165910-22-4 for LGD4033; 1182367-47-0 for RAD140; 1370003-76-1 for YK11
• Molar Mass is 338.253 g·mol−1 for LGD4033; 393.83 g·mol−1 for RAD140; 430.541 g·mol−1 for YK11
• It has a Chemical Formula as C14H12F6N2O for LGD4033; C20H16ClN5O2 for RAD140; C25H34O6 for YK11
• IUPAC Name is 4-[(2R)-2-[(1R)-2,2,2-trifluoro-1-hydroxyethyl]pyrrolidin-1-yl]-2-(trifluoromethyl)benzonitrile for LGD4033; 2-chloro-4-{[(1R,2S)-1-[5-(4-cyanophenyl)-1,3,4-oxadiazol-2-yl]-2-hydroxypropyl]amino}-3-methylbenzonitrile for RAD140; Methyl (2E)-2-[(8R,9S,10R,13S,14S,17S)-2'-methoxy-2',13-dimethyl-3-oxospiro[1,2,6,7,8,9,10,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthrene-17,5'-1,3-dioxolane]-4'-ylidene]acetate for YK11
• Also known by Synonyms as VK5211 for LGD4033; (17α,20E)-17,20-[(1-methoxyethylidene)bis(oxy)]-3-oxo-19-norpregna-4,20-diene-21-carboxylic acid methyl ester for YK11

Packaged in an air-sealed mylar bag. Keep contents sealed and stored in a cool dry place.  Items are shipped in a plain envelope or bubble mailer within 24-48 hours (or the next business day).

Note: For researchers looking for alternative formulations, BehemothLabz offers a variety of SARMs Capsules, including LGD-4033 Ligandrol Capsules and Ostarine + Cardarine Capsules. Explore our selection to find research compounds tailored to your study requirements.

BehemothLabz Disclaimer

Please make sure you go through the Terms and Conditions, and please familiarize yourself with it as it is important. Please research the scientific uses of this product before making any purchases. Make note that the packaging and labels of the product may differ from those shown on the website.
Buying the product means you agree with our Terms and Conditions. You can contact our awesome customer service team at support@behemothlabz.com if you are not fully satisfied with the product. Customer satisfaction is our number one priority!

ATTENTION: All BehemothLabz products are strictly for LABORATORY AND RESEARCH PURPOSES ONLY. They are not to be used for any human or veterinary purposes.

Ligandrol (LGD-4033) is a non-steroidal selective androgen receptor modulator (SARM). It is investigated in research for its interaction with androgen receptors in muscle and bone tissues. It was originally developed to study conditions related to musculoskeletal degradation.

LGD-4033 is used to explore mechanisms involved in muscle cell growth, protein synthesis, and bone metabolism in experimental conditions. It has a selective receptor activity, which can be beneficial for studying gene transcription linked to anabolic processes in research models. However, due to limited long-term data, its full biological impact remains under investigation, and it is available for experimental purposes only.

Working Mechanism of Ligandrol (LGD-4033) Liquid

LGD-4033 functions by binding to androgen receptors in muscle and bone tissues. In experimental models, this binding activates receptor-mediated gene transcription, influencing pathways involved in protein synthesis and cellular growth.

In laboratory studies, this receptor activation is used to examine muscle cell differentiation and bone-related signaling processes. Its selective activity provides a controlled model for studying anabolic pathways and tissue-specific molecular responses.

Properties of Ligandrol (LGD-4033) 

• Chemical Formula: C14H12F6N20
• Synonym: Ligandrol, LGD4033, LGD-4033, VK-5211, 4-((R)-2-((R)-2,2,2-Trifluoro-1-hydroxyethyl)pyrrolidin-1-yl)-2-(trifluoromethyl)benzonitrile
• IUPAC-Name: 4-[(2R)-2-[(1R)-2,2,2-trifluoro-1-hydroxyethyl]pyrrolidin-1-yl]-2-(trifluoromethyl)benzonitrile
• Molecular weight: 338.25 g/mol
• CAS Number: 1165910-22-4
• PubChem CID: 44137686
• Shelf Life: 36 months

Research Applications of Ligandrol (LGD-4033)

Research indexed in PubChem and PubMed shows that LGD-4033 is studied for its role in muscle tissue biology. In experimental models, it activates androgen receptors and influences gene expression linked to protein synthesis and muscle cell differentiation. 

Another research explores LGD-4033 in bone-related studies. Findings from preclinical and early-phase investigations indicate that it affects pathways involved in bone metabolism and mineral density regulation. So, LGD-4033 is relevant in experimental research related to skeletal system signaling, bone remodeling processes, and interactions between androgen receptors and bone tissue.

Why Choose BehemothLabz to Buy LGD-4033 Ligandrol Liquid online? 

Before selecting a supplier, it is important to develop a clear understanding of both the compound and the source providing it. An inappropriate selection may lead to inconsistencies in compound identity, purity, or stability. Therefore, careful evaluation of supplier credibility is essential when sourcing LGD-4033 for laboratory research.

Behemoth Labz is a supplier that provides Liquid LGD4033 for sale that is intended for research applications. Compounds are presented for use in controlled laboratory settings, with an emphasis on maintaining product integrity and consistency. Documentation related to compound specifications may be available to support verification processes in research environments.

Additionally, suppliers in this category typically conduct internal or third-party testing to assess identity and purity prior to distribution. Established providers may also demonstrate consistency in sourcing and quality control practices, which can contribute to reproducibility and reliability in experimental studies.

Note: For comprehensive research solutions, BehemothLabz offers a range of liquid SARMs, Ligandrol-based research products, and other selective modulators like Ostarine MK-2866. Explore our collection to enhance your research efficiency.

Disclaimer

Please make sure you go through the Terms and Conditions, and please familiarize yourself with them, as they are important. Please research the scientific uses of this product before making any purchases. Make note that the packaging and labels of the product may differ from those shown on the website.

Buying the product means you agree to our Terms and Conditions. You can contact our awesome customer service team at support@behemothlabz.com if you are not fully satisfied with the product. Customer satisfaction is our number one priority!

ATTENTION: All BehemothLabz products are strictly for LABORATORY AND RESEARCH PURPOSES ONLY. They are not to be used for any human or veterinary purposes.

Reference Links

PubChem. (2026). Vk-5211. Nih.gov; PubChem. https://pubchem.ncbi.nlm.nih.gov/compound/Vk-5211

Basaria, S., Collins, L., Dillon, E. L., Orwoll, K., Storer, T. W., Miciek, R., Ulloor, J., Zhang, A., Eder, R., Zientek, H., Gordon, G., Kazmi, S., Sheffield-Moore, M., & Bhasin, S. (2010). The Safety, Pharmacokinetics, and Effects of LGD-4033, a Novel Nonsteroidal Oral, Selective Androgen Receptor Modulator, in Healthy Young Men. The Journals of Gerontology: Series A, 68(1), 87–95. https://doi.org/10.1093/gerona/gls078

Fragkaki, A. G., Sakellariou, P., Kiousi, P., Kioukia‐Fougia, N., Tsivou, M., Petrou, M., & Angelis, Y. (2018). Human in vivo metabolism study of LGD‐4033. Drug Testing and Analysis, 10(11-12), 1635–1645. https://doi.org/10.1002/dta.2512