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HGH 191AA
PerformanceSingleAlso known as: Recombinant Human Growth Hormone, Somatropin
Recombinant human growth hormone — the actual GH protein produced by E. coli or mammalian cell expression, used clinically for GH deficiency.
Half-life
3 h
Common dose
1 – 4 IU
Dosing frequency
Daily
Administration
Subcutaneous
How it works
Exogenous HGH binds the GH receptor in liver and peripheral tissues, increasing IGF-1 production, lipolysis, and protein synthesis. Unlike GHRH/GHRP analogs, it bypasses pituitary regulation.
Protocol notes
Clinical dosing is 1–4 IU daily subcutaneously, typically before bed. Long cycles of 6+ months are common. Suppresses endogenous GH production and requires careful blood-sugar monitoring.
Reported side effects
Water retention, joint pain, carpal tunnel symptoms, insulin resistance, edema, and potential acromegaly with long-term high-dose use.