What Is Sermorelin?

Sermorelin is the first 29 amino acids of natural GHRH — the shortest fragment that retains full activity. It was an FDA-approved pediatric growth-hormone deficiency drug (Geref) until 2008, when it left the market for commercial reasons, and it has decades of clinical familiarity behind it.

That history made it the backbone of anti-aging and wellness-clinic GH programs: a nightly injection that nudges the pituitary's own output rather than replacing it, preserving natural feedback loops that direct HGH injections bypass.

What is Sermorelin studied for?

Side effects & safety

Well characterized from clinical use: injection-site reactions, transient flushing, occasional headache. Its feedback-preserving mechanism is inherently self-limiting — one reason clinics favor it.

Legal & approval status

No longer an approved product but historically was; today prescribed via compounding in some jurisdictions and sold as a research chemical in others. WADA-banned in sport.

Typical dosing at a glance

Commonly reported protocols use 200 mcg–500 mcg, nightly before bed, via subcutaneous injection. For the mixing math — how much bacteriostatic water, exact syringe units, doses per vial — see the Sermorelin reconstitution calculator →

Related peptides

What is Ipamorelin?What is CJC-1295 (no DAC)?What is CJC-1295 DAC?What is Tesamorelin?What is Hexarelin?

Educational overview based on published research and commonly reported community protocols — not medical advice, and not an endorsement of any compound. Consult a licensed healthcare provider.