Not medical advice. Talk to your provider before using any peptide.
Full disclaimerPeptide Schedule Research TeamReviewed Apr 20266 Citations
HGH 191AA16 residuesYLRIVQCRSVEGSCGFEach bubble = one amino acid. Size = residue mass. Color = chemical class.HGH 191AA is recombinant somatropin, the same 191-amino-acid growth hormone your pituitary makes. FDA-approved for growth hormone deficiency, it's used off-label for fat loss, recovery, and anti-aging at doses well above clinical guidelines. Quality varies wildly by source and manufacturer.
200mcg · Daily
Summary: Add 1mL BAC water to your 3.3mg vial. Draw to 6.1 units on a U-100 syringe for a 200mcg dose. This vial will last 16 doses.
View side effects and safety warnings →
| Level | Dose / Injection | Frequency |
|---|---|---|
| Beginner | 200mcg | Daily |
| Moderate | 500mcg | Daily |
| Aggressive | 1mg | Daily |
The IU-to-mcg conversion trips up most beginners: 1 IU equals roughly 333 mcg. A 10 IU vial holds about 3.3 mg of somatropin. A 15 IU vial holds roughly 5 mg. Reconstitution math for the standard 10 IU vial: add 1 mL bacteriostatic water. That gives you 10 IU per mL. On a U-100 insulin syringe, 10 units equals 1 IU (333 mcg). For the beginner dose of 200 mcg (0.6 IU), draw 6 units. Moderate dose of 500 mcg (1.5 IU) is 15 units. Aggressive dose of 1000 mcg (3 IU) is 30 units. Swirl the vial gently after adding water. Never shake or vortex somatropin; the protein is fragile and shaking creates dimers that increase side effects. Store reconstituted vials at 2 to 8 degrees Celsius and use within 28 days. Lyophilized (powder) vials also belong in the fridge. Never freeze reconstituted HGH. Morning fasted injection maximizes fat mobilization. Pre-bed injection amplifies the natural nocturnal GH pulse and tends to improve sleep quality. Split dosing (AM plus PM) is common at 3 IU per day or above.
Dosing based on Compounded HGH somatropin: community dosing consensus — 7 published references.View all sources →
Cross-check your HGH 191AA reconstitution math with AI
Pricing updated 2026-04-09
Prices are estimates and vary by source, location, and prescription status.Full pricing breakdown →
Disclaimer: This curve is a simplified first-order exponential decay model. Actual pharmacokinetics vary based on injection site, individual metabolism, body composition, and other factors. Half-life values are approximate and based on available preclinical and clinical literature. Many research peptides lack formal human pharmacokinetic studies. This is for educational purposes only — not medical advice.
HGH 191AA is recombinant somatropin, the same 191-amino-acid growth hormone your pituitary makes. FDA-approved for growth hormone deficiency, it's used off-label for fat loss, recovery, and anti-aging at doses well above clinical guidelines. Quality varies wildly by source and manufacturer.
