SERM

Sermorelin

Growth Hormone Discontinued

The first 29 amino acids of natural GHRH; physiology studies describe physiological (pulsatile) GH release patterns. Formerly FDA-approved for pediatric GHD; no longer marketed in the US.

Regulatory status (as of Sept 2026)

Previously FDA-approved (Geref), since discontinued in the US; compounded sermorelin is not an FDA-approved product.

See the FDA peptide regulatory tracker · Read our July 27, 2026 dispatch on the FDA PCAC peptide vote
Educational summary. Every effect described below is drawn from the cited published research and describes what was observed in research subjects — not a promise of results, a dose recommendation, or an endorsement for human use. Many peptides are not FDA-approved. Consult a licensed healthcare provider before making any health decision. Full disclaimer.

2 studies referenced · Last reviewed Oct 1, 2026 · Reviewed by The Peptide Dispatch Editorial Team · How we research & label content

TL;DR — Sermorelin at a Glance

Sermorelin is a compound whose development or US marketing has been discontinued. The first 29 amino acids of natural GHRH; physiology studies describe physiological (pulsatile) GH release patterns.

Half-life10-20 minutes
How it's given in studiesSubcutaneous injection
Research stageDiscontinued
Dosing
Published research: No published human dosing
detailsDiagnostic: 1 µg/kg IV single dose; pediatric GHD treatment: 30 µg/kg SC once daily at bedtime.
Community-reportedCommunity-reported: 100–300 mcg, subcutaneous injection

Published-research dosing is what was given in the cited studies (species and units as reported). Community-reported dosing is what users describe, not from clinical studies. Neither is a recommendation. Not medical advice.

Where each point comes from: Clinicalhuman trials and FDA labels   Lab / animalrodent, cell and ex vivo studies   Community-reporteduser experience and commonly used protocols, not from clinical studies

How It Works

In plain terms: It is a short copy of the hormone that tells the pituitary gland to release growth hormone. GHRH fragment (GRF 1-29) that stimulates growth hormone secretion from the anterior pituitary (review, Prakash 1999).

Effects Reported in Research

How to read this: Each item below is an effect observed in research subjects in the cited studies — think of Dexter, our stand-in research subject. These are findings from the literature, not results you should expect, and not medical advice.

  • Physiology studies describe natural pulsatile GH release
  • ClinicalFormerly FDA-approved for pediatric GHD; no longer marketed in the US.

What Users Report (Community, Not Clinical)

Commonly reported protocol

Community-reportedCommonly reported doses range from 100 to 300 mcg (subcutaneous injection). This is not a recommendation.

What users report

  • Community-reportedImproved sleep
  • Community-reportedAnti-aging

Community reports are anecdotal, vary widely in product quality and purity, and are not medical advice. Talk to a licensed provider.

Side Effects and Safety Notes

  • Transient facial flushing
  • Injection-site pain
  • Headache

References

  1. Sermorelin: a review of its use in the diagnosis and treatment of children with idiopathic growth hormone deficiency
    Prakash A, Goa KL. BioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy. 1999. PMID: 18031173.
    Study type: Drug review.
    DOI: 10.2165/00063030-199912020-00007 · PubMed
  2. Growth hormone-releasing factor analogue (hGRF1-29NH2): immunoreactive-GRF plasma levels after intravenous and subcutaneous administration
    Rafferty B, Poole S, Clarke R, Schulster D. The Journal of endocrinology. 1985. PMID: 2866222.
    Study type: Rat PK (IV, SC).
    DOI: 10.1677/joe.0.107r005 · PubMed

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How Sermorelin Compares

PeptideHalf-LifeRouteResearch Status
Sermorelin10-20 minutesSubcutaneous injectionDiscontinued
CJC-1295 (no DAC)No published PK data foundSubcutaneous injectionPreclinical (animal)
CJC-1295 (with DAC)6-8 daysSubcutaneous injectionPhase 1 / early human
GHRP-2No published PK data foundSubcutaneous injectionPhase 1 / early human
GHRP-6No published PK data foundSubcutaneous injectionPhase 1 / early human

Values reflect figures reported in published research. Compare any peptides side-by-side →

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Frequently Asked Questions

What is Sermorelin?
The first 29 amino acids of natural GHRH; physiology studies describe physiological (pulsatile) GH release patterns. Formerly FDA-approved for pediatric GHD; no longer marketed in the US.
How does Sermorelin work?
In plain terms: It is a short copy of the hormone that tells the pituitary gland to release growth hormone. GHRH fragment (GRF 1-29) that stimulates growth hormone secretion from the anterior pituitary (review, Prakash 1999).
What is the research status of Sermorelin?
Sermorelin is at the following stage in the published literature: Discontinued. All information is for research and educational purposes only.
What is the half-life of Sermorelin?
Reported half-life: 10-20 minutes.
How is Sermorelin administered in research?
Reported administration route in the literature: Subcutaneous injection. This is not a recommendation for human use.

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Category

This peptide belongs to the Growth Hormone category. View All Growth Hormone Peptides

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Sources & Methodology

Dosing, half-life figures, and mechanism descriptions on this page are compiled from peer-reviewed published research, with the species and study type stated where reported. Figures labeled “Dosing used in published research” describe what was given in those studies and do not constitute dosing recommendations for any human use. Each cited paper is listed with DOI and PubMed links in the References section above. Found an error? Contact us.

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