Somatropin is recombinant human growth hormone (rHGH), a 191-amino-acid protein identical to naturally produced pituitary GH. Unlike secretagogues (which stimulate GH release), somatropin IS the direct hormone. FDA-approved for multiple indications including growth hormone deficiency, Turner syndrome, and chronic renal insufficiency in children.
1 independent Janoshik purity test cover Somatropin (rHGH) across 1 vendor.
Category: Growth Hormone. Evidence rating: A (strong human clinical data).
Clinical status: FDA-approved for multiple indications. Extensive clinical data spanning decades.
Direct growth hormone that binds to GH receptors on target tissues, stimulating IGF-1 production in the liver and cellular growth, repair, and metabolism throughout the body. Promotes linear growth in children, protein synthesis, lipolysis, and glucose homeostasis.
Safety considerations: Well-characterized safety profile for approved indications; Common side effects: joint pain, edema, carpal tunnel syndrome, glucose intolerance; Theoretical concern for cancer risk — FDA label notes contraindication in active malignancy.
Reviewed by the PeptideAtlas Editorial Team.
| Molecular weight | 22,124 Da |
|---|---|
| Half-life | 2-3 hours (SC injection) |
| Production method | recombinant |
| US regulatory status | FDA-approved (multiple brand names). Schedule III controlled substance when used without prescription. |
| Vendor | Best tested purity |
|---|---|
| avivaswiss.com/ | 96.3% |
Related peptides: HGH 191AA, CJC-1295 with DAC.
Somatropin IS growth hormone directly. Secretagogues (CJC-1295, Ipamorelin, GHRP-6) stimulate your pituitary to produce MORE of your own GH. Somatropin bypasses the pituitary entirely and provides exogenous GH.
Somatropin is a prescription medication, legal with a valid prescription for FDA-approved indications. It is a Schedule III controlled substance in the US when distributed without a prescription. Anti-aging use is off-label.
Somatropin is recombinant human growth hormone (HGH) identical to naturally produced GH. It's the direct hormone rather than a secretagogue, requiring careful consideration of source and quality.
SOMATROPIN (HGH) has been studied for: Direct GH effects, Muscle growth, Fat metabolism, Recovery, Anti-aging. Direct recombinant HGH; source verification critical.
Direct growth hormone that binds to GH receptors, stimulating IGF-1 production and cellular growth, repair, and metabolism.