ProtokolPROTOKOL
Steroid

Human Growth Hormone (HGH)

Also known as HGH 191AA, HGH 191AA (Somatropin), Somatropin, 191AA, Recombinant HGH, rHGH

Half-life

~2-3 hours

What is Human Growth Hormone (HGH)?

Recombinant human growth hormone. Used for body composition, anti-aging, and GH deficiency.

How Human Growth Hormone (HGH) works

Activates GH receptor/JAK2-STAT signaling and increases hepatic IGF-1, driving lipolysis, collagen synthesis, and tissue growth.

Benefits & uses

Common uses: Fat loss, muscle mass, anti-aging, injury recovery, GH deficiency treatment.

Human Growth Hormone (HGH) half-life

~2-3 hours (GH), IGF-1 ~12-15 hours

Human Growth Hormone (HGH) side effects

Carpal tunnel, water retention, acromegaly with long-term high doses, insulin resistance.

  • Edema/carpal tunnel
  • Insulin resistance
  • Potential organ growth with chronic excess

Track Human Growth Hormone (HGH) in Protokol.

Log doses, model half-lives, check interactions, and line it all up against your bloodwork. Free on iPhone and Android.

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For research and educational purposes only. This page is not medical advice and is not a recommendation to use any compound. Many compounds listed are not approved for human use, and some are prescription-only or controlled in your jurisdiction. Dosing figures are reference or observational reports. Talk to a qualified healthcare provider before starting, stopping, or changing anything. Protokol is for tracking purposes only.