hGH

Mechanism

191-amino-acid pituitary hormone acting through JAK2/STAT5 and IGF-1 pathways.

Reported effects

What sources associate with this compound. Reported categories, not outcomes we have graded — each would need its own citation and rung.

• Body recomposition
• Cellular regeneration
• Sleep, skin, and bone support

Half-life, storage & sport

Elimination half-life

3.4 h (human, SC) — study. Drug design, development and therapy 2025; not stated; the figure is a comparator for native hGH restated inside a preclinical study of a PEGylated analogue, and the sentence gives it no citation.

The half-life on file is 3.4 h, measured subcutaneously. On the schedule this record states — daily — each dose has fallen to 0.75% of its own peak by the time the next is given. Nothing accumulates, and there is no loading phase to run.

The rise is not modelled and the axis is not a blood level. No absorption rate constant and no volume of distribution are on file, so each dose appears at full height the instant it is given, and the axis is percent of this compound's own peak.

Literature on file 5

• human observational
  Long-Acting Growth Hormone Versus Daily Growth Hormone for Growth Hormone Deficiency Patients: A Network Meta-Analysis of Clinical Trials. graded on: a synthesis of human studies — “Meta-Analysis”
• review or editorial
  PRKAR1A-related acrodysostosis with partial growth hormone deficiency: 18-month response to recombinant human growth hormone. graded on: indexed as "Review" - secondary literature, not a study — “Review”
• review or editorial
  Healthy short stature. graded on: indexed as "Review" - secondary literature, not a study — “Review”
• human observational
  Real-World Effectiveness and Safety of Recombinant Human Growth Hormone in Chinese Children with Noonan Syndrome: Long-Term Follow-up and a 2-Year Comparison of Short- and Long-Acting Formulations. graded on: an observational human design — read from the indexed abstract — “retrospective”
• in vitro
  Charge-Interaction-Mediated Adsorption of Human Growth Hormone on Polymeric Nanoparticles. graded on: cell-free adsorption physicochemistry on polystyrene nanoparticles — read from the abstract — “abstract review”

Identity

Classified as

Growth Hormone / IGF-1 Axispathway

The lab value people actually track, IGF-1 in ng/mL, sits two steps downstream of where most of these compounds act, so a record's mechanism and its measurable marker are rarely the same thing.

Also called

• hGH

Listed prices 48

What 19 shops we track listed for hGH, read from their own public catalogues on 2026-09-14. We take no commission on these and they are not ranked by any payment — how vendors are scored.