Research chemicals only · Not for human use · DYOR

Peply Labs
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Strong human
Growth Hormone

Sermorelin

aka GRF (1-29), Geref

Classic GHRH analog—gentle GH support

MW (Da)

3,358

Half-life

~10–20 min

Sequence

First 29 aa of GHRH

Storage

Lyophilized 2–8 °C. Reconstituted refrigerate, 30 days.

Research chemicals only. Not for human use. For research and educational purposes only. Always do your own due diligence and consult qualified professionals.

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Safety at a glance

Full safety details

Most-reported side effects

  • Flushing
  • Mild headache

Don't use if…

  • Active cancer
  • Pregnancy

What it is

First 29 amino acids of human GHRH. FDA-approved historically for pediatric GH deficiency. Today widely used in age-management clinics for GH optimization.

Mechanism of action

Binds GHRH receptors on pituitary somatotrophs to release endogenous GH. Short half-life keeps the pulsatile pattern intact.

Reported benefits

  • Improved sleep, recovery, mood, body composition
  • Mild compared to CJC-1295 / Tesamorelin
  • Good entry-level GHRH; preserves natural feedback

Evidence notes

Decades of clinical pediatric data. Adult anti-aging use is off-label but well-characterized.