Peptide Schedule
HGH (Somatropin)31 residues (approx.)FPTIPLSRLFDNAMLRAHRLHQLAFDTYQEFEach bubble = one amino acid. Size = residue mass. Color = chemical class.Uses closest standard amino acids for non-standard residues.HGH (Somatropin) Dosage Calculator
Somatropin is recombinant human growth hormone — a 191-amino-acid protein identical to what your pituitary gland produces naturally.
1mcg · Daily
Summary: Add 1mL BAC water to your 10mg vial. Draw to < 0.1 units on a U-100 syringe for a 1mcg dose. This vial will last 10000 doses.
Cycle Planner
HGH (Somatropin) Pharmacokinetics
Pharmacokinetics — Active Dose Over Time
t½ = ~2-3 hours SCDisclaimer: 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 (Somatropin) Dosing Protocol
| Level | Dose / Injection | Frequency |
|---|---|---|
| Beginner | 1 IU | Daily |
| Moderate | 3 IU | Daily |
| Aggressive | 6 IU | Daily |
Note: FDA-approved recombinant human growth hormone. Brands include Genotropin, Humatrope, Norditropin, Omnitrope. Dosed in IU — 1 IU ≈ 0.33mg. Pre-filled pens need no reconstitution. Lyophilized vials reconstitute with 1-2mL provided diluent. Inject SC, rotate sites. Monitor IGF-1 every 3-6 months.
About HGH (Somatropin)
Somatropin is recombinant human growth hormone — a 191-amino-acid protein identical to what your pituitary gland produces naturally. It's been FDA-approved since 1985 and is sold under brand names like Genotropin (Pfizer), Humatrope (Lilly), Norditropin (Novo Nordisk), and Omnitrope (Sandoz). Unlike secretagogues that coax your pituitary into releasing GH, somatropin is the hormone itself, delivering predictable, dose-dependent elevations in serum GH and IGF-1. The landmark Rudman et al. study (NEJM, 1990) showed that six months of GH administration in men over 60 increased lean body mass by 8.8% and decreased adipose tissue by 14.4%. That paper ignited decades of research into GH's effects on body composition, bone density, and quality of life. More recent data from the KIMS database — tracking 15,809 GH-treated adults — confirmed a favorable long-term safety profile with neutral effects on lipids and glucose when dosed appropriately. Clinically, somatropin treats pediatric and adult growth hormone deficiency, Turner syndrome, chronic kidney disease in children, Prader-Willi syndrome, and HIV-associated wasting. Off-label, it's used at lower doses (1-2 IU/day) for anti-aging, improved sleep architecture, skin elasticity, and body recomposition. At moderate doses (2-4 IU), athletes and patients recovering from injuries report faster healing and better recovery. Higher doses (4-8 IU) enter bodybuilding territory and carry greater side-effect risk. Somatropin's pharmacokinetics are straightforward: subcutaneous injection gives ~80% bioavailability, peak serum levels at 3-5 hours, and a terminal half-life of about 2-3 hours. The biological effects, mediated through IGF-1, last far longer — roughly 20-24 hours — which is why once-daily dosing works well.