Body Composition Peptides

ACVR2B-Fc

A fusion protein combining the ligand-binding domain of the activin type IIB receptor (ACVR2B) with the Fc region of human IgG1. Acts as a decoy receptor for multiple TGF-beta superfamily members including myostatin, activin A, GDF-11, and BMP9, simultaneously blocking all of them to produce dramatic increases in muscle mass.

CJC-1295 DAC

A synthetic analog of growth hormone-releasing hormone (GHRH) that extends the half-life of endogenous GHRH. One of the most popular peptides for muscle growth and fat loss when stacked with a GHRP like Ipamorelin.

Modified GRF 1-29

A synthetic 29-amino acid GHRH analog with 4 amino acid substitutions that improve stability and receptor affinity compared to Sermorelin. Unlike CJC-1295 DAC, it has no Drug Affinity Complex, giving it a short 30-minute half-life that mimics the body's natural pulsatile GHRH secretion when co-administered with a GHRP.

FST-315

A truncated 315-amino acid isoform of follistatin that lacks the heparin-binding domain, giving it a shorter half-life and more localized action compared to Follistatin-344. Still potently inhibits myostatin and activin for muscle growth but with a different distribution profile.

FST-344

A naturally occurring protein that inhibits myostatin and activin, effectively removing the biological ceiling on muscle growth.

Growth Hormone Releasing Peptide-2

A second-generation GHRP with high GH-releasing potency and a cleaner side effect profile than GHRP-6. Less appetite stimulation makes it preferable for body recomposition.

Growth Hormone Releasing Peptide-6

One of the first synthetic GHRPs developed, GHRP-6 is a potent GH secretagogue that also significantly stimulates appetite through ghrelin receptor activation.

Examorelin

A synthetic hexapeptide GHRP with the highest GH-releasing potency among the GHRP family. Notable for both its muscle-building effects and documented cardiovascular benefits.

Des(1-3)IGF-1

A truncated analog of IGF-1 missing the first 3 amino acids from the N-terminus. This modification dramatically reduces its affinity for IGF-binding proteins (IGFBPs), making it approximately 10x more potent than native IGF-1 at the receptor level, with a much shorter half-life ideal for local/acute muscle actions.

IGF-1

A long-acting analog of IGF-1 with a modified arginine substitution that extends its half-life. Directly stimulates muscle protein synthesis independent of GH.

Ipamorelin acetate

A selective growth hormone secretagogue and ghrelin mimetic that stimulates GH release without significantly elevating cortisol or prolactin. One of the cleanest and most widely used peptides for body recomposition.

Mechano Growth Factor

A splice variant of IGF-1 released in muscle fibers in response to mechanical damage. Activates muscle satellite cells to initiate repair and hypertrophy.

Ibutamoren

A non-peptide, orally active growth hormone secretagogue that mimics ghrelin, significantly elevating GH and IGF-1 levels. Unique in being orally bioavailable.

PEGylated Mechano Growth Factor

The PEGylated (polyethylene glycol-conjugated) form of Mechano Growth Factor (MGF), extending its extremely short native half-life from minutes to 24-72 hours. This systemic form activates muscle satellite cells throughout the body rather than only at the injection site, making it suitable for systemic muscle recovery and anti-aging applications.

GRF 1-29 NH2

A 29-amino acid synthetic analog of endogenous GHRH that stimulates natural GH production. Clinically used for GH deficiency and widely used in anti-aging medicine as a safer alternative to exogenous HGH.

Egrifta

An FDA-approved synthetic GHRH analog originally developed to treat HIV-associated lipodystrophy. Highly effective at reducing visceral adipose tissue.