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Sermorelin

Also known as: GRF 1-29, GHRH (1-29)

Peptide (GHRH Analog)
Last updated: 1/23/2026 Last reviewed: 1/23/2026

At a Glance

Sermorelin is a peptide analog corresponding to GHRH 1–29 (GHRH(1–29)-NH2) studied for its ability to stimulate growth hormone secretion. Early clinical physiology work in healthy subjects examined pharmacokinetics and GH stimulation after different routes of administration. [PMID: 8329825]

⚠️ Research Status: Sermorelin is not an approved medication in many jurisdictions. This page is educational and intentionally does not include protocols/dosing.


Mechanism of Action (TBD)

Acts as a GHRH receptor agonist at pituitary somatotrophs in studied physiology contexts, stimulating GH release. [PMID: 8329825]


Evidence Summary

Pharmacokinetics and GH stimulation (Healthy subjects)

Low Confidence Observational >10 Years

Study in healthy men reported rapid elimination after intravenous administration and low bioavailability via intranasal delivery in that study context, with measurable GH stimulation. [PMID: 8329825]


Safety & Unknowns

  • Endocrine axis effects (GH/IGF-1 and downstream physiology) require careful, citation-backed characterization by indication and population.
  • Long-term outcomes and safety depend on clinical context; avoid extrapolating from early physiology studies.

Regulatory Status

RegionStatus
United States (FDA)Not approved (verify indication-specific context)
European Union (EMA)Not approved (verify indication-specific context)
WADACheck current list (status may change)

  • CJC-1295: Another GHRH-related peptide family member often discussed in similar contexts

Changelog

DateChange
2026-01-23Added dossier and linked primary literature