YK-11 for sale (Injectable) – Product Information

What are SARMs?

SARMs, or selective androgen receptor modulators, are compounds that may have the potential to help build muscle mass and reduce body fat. They are being researched for the potential to produce similar effects to anabolic steroids but have reduced androgenic properties, which means their side effects will be less intense.

SARMs were originally developed to treat and manage musculoskeletal diseases such as muscle wasting and osteoporosis. Once it became known that they consist of the potential to build lean muscle mass and shred body fat, SARMs became the favorite subject of researchers and scientists.

What makes YK-11 different?

YK-11 is a selective androgen receptor modulator that is very unique. It not only selectively binds to muscle tissue and bone, but also has the ability to inhibit myostatin. This is a natural occuring protein that functions to impede muscular growth.

What are the Potential Benefits of YK-11?

Potential to Enhance Muscle Mass

As mentioned above, Myostatin is a protein that functions to impede muscle growth and strengthening.

A cell study has shown that YK11 attaches to the androgen receptor to help inhibit the production of myostatin in the muscle to create more follistatin, thus, increasing muscle growth. This shows massive promise in the potential anabolic activity of YK11. [R]

The mechanism with which YK11 works distinguishes it from other SARMs. Most SARMs work by binding androgen receptors in the muscle and bone tissue, without having an effect on myostatin. YK11 is thus a novel steroidal SARM.

May stimulate Bone Growth

In a cell study, YK11 was found to activate PKB (protein kinase B) in osteoblast cells of mice.

PKB are enzymes naturally found in the human body. Research has shown that, upon, activation, PKBs send signals to stimulate bone growth. This implies that YK-11 may have the potential to stimulate bone grwoth. [R]

However, more extensive research and randomized trials are needed to potentially evaluate its efficacy in strengthening bones in select populations.

Potential Effect on Muscle Wasting

Sepsis patients are especially vulnerable to muscle wasting.

To observe the effects of YK11 on muscle wasting, septic mice were administered Myostatin. YK11 was found to decrease weight loss in the mice in a concentration-dependent manner. YK11 also reverted the muscle mass loss and muscle cell atrophy, and increased total body weight. [R]

Moreover, YK11 uptake helped recover the muscle mass loss in the backs and thighs of mice. Still, longer randomized trials are needed to evaluate its efficacy in select populations.

YK11 and Fat Loss

A recent study set out to investigate the expression and regulation of myostatin in skeletal muscle in septic mice. The results showed that YK11 treatment decreased fat mass. [R]

However, in the absence of any long-term study, it is difficult to verify the effect of YK11 on fat mass in select populations. Long-term, clinical trials are needed to potentially evaluate its efficacy in reducing body fat.

Where to Buy YK-11

We’ve been around since the 2014, supplying the highest quality kick-ass research compounds money can buy. We offer free shipping on all orders above $100. Our compounds comes with an independent, third-party-issued Certificate of Analysis for identification, purity, and concentration. We offer same day processing and international shipping.


  • CAS Number is stated as 1370003-76-1
  • Molar Mass is 430,541 g/mol
  • It has a Chemical Formula as C25H34O6
  • IUPAC Name: (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
  • Also known by Synonyms as 19-Norpregna-4,20-diene-21-carboxylic acid

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 and veterinary purposes.


10ml / 64mg per ml / 640mg


4 reviews for YK-11

  1. Brad Sims

    The customer service from you guys is outstanding, happy repeat customer here!

  2. Tony

    Love this product, have been using this on and off for a long time. Keep up the great work, Behemoth Labz!

  3. Brian Lee

    Noticeable gains from the first week. Thanks!

  4. David Hall

    Very satisfied with this product and the customer service, thank you.

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