What are peptides?

Peptides are short-chain amino acids that are found naturally in the human body. Amino acids are the building blocks of protein and these amino acids are specifically designed to regulate certain functions within the human body.

Peptides are used as a mode of therapy that are used to take existing sequences and rewrite to potentially regulate and rejuvenate functions. In simpler terms, they bind to and tell other cells what to do, mimicking or replacing the functions of the naturally occurring peptide. Peptides may have the ability to rewrite body chemistry to promote homeostasis, restoration and anabolism.


Insulin-like Growth Factor 1, abbreviated IGF-1, is a protein that is compromised of the the IGF1 gene. It consists of 70 amino acids and is a hormone that is very similar in structure to insulin. Its main function is to stimulate growth within the body due to its regulation of both cell growth and cell death.

Synthetic IGF-1 serves as an alternative to solely relying on the pituitary gland to make Human Growth Hormone (HGH). The pituitary gland decreases function with age, but the IGF-1 produces the same effects of growth hormone without relying on the pituitary gland.

IGF-1 Long R3, or IGF-1 LR3, is a form of IGF that has been chemically altered by changing the amino acids. It consists of 83 amino acids with a substation of Arg(R) for the Glu(E) at position three, hence, the name R3. The altercations enable it to avoid binding to proteins in the body, which allows for a much longer half-life [R].

IGF-1 LR3 is more potent than the regular IGF-1 because of the decreased binding of Long R3 IGF-1 to IGF binding proteins. Its main purpose is to increase the biological activity of IGF.IGF-1 LR3 peptide additionally inhibits the movement of glucose into cells to facilitate fat burning. The difference between media and receptor is in the purity, which is >85% and >95% respectively.

IGF and Growth

A recent study utilizing mice with GH receptor KO gene showed that IGF-1 administration stimulates the growth (width) of the tibial growth plate and that IGF-1 has a GH independent effect on the growth plate. These findings are similar to those found when treating hypophysectomised rats with IGF-1 [R].

 IGF-1 LR3 Research Peptide

  • CAS Number is stated as 946870-92-4
  • Molar Mass is 9117,60 g·mol−1
  • It has a Chemical Formula as C400H625N111O115S9
  • IUPAC Name:(insulin-like growth factor-1 long arginine 3
  • Also known by Synonyms as IGF-I, IGF1A, IGFI

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7 reviews for IGF1 LR3 DES

  1. Dale M. Shelton

    Periodically I run 100mcg a day for 4 weeks. As an additive, enhances my cycle. I would recommend. Does not have the fat reduction of HGH. Increases LH and FSH. I also noticed load increase.

  2. B Thiele

    Every order processed fast, and all of it excellent quality! I recommend this to professional sportsmen.

  3. Lawrence Rivera

  4. Phillip

  5. Dallin Nikolaus

    Excellent customer service. I will order again.

  6. Israel L

  7. Phizell C

    It works slowly but is very effective. I have no complaints

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