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Healing & Recovery
Preclinical

Sermorelin

Sermorelin

Also known as: Geref, GRF 1-29, Sermorelin Acetate

Overview

Key Facts

Primary Goal: Research and therapeutic applications of Sermorelin

Binds GHRH receptors on anterior pituitary somatotrophs to stimulate GH synthesis and secretion. Preserves the natural negative feedback loop of the GH-IGF-1 axis.

Dosing Information

Half-Life

10-20 minutes

Typical Dose

200–500 mcg

Frequency

once daily before bed

Cycle Length

3-6 months

Administration Routes:
subcutaneous

Benefits

  • Restores natural GH pulsatility
  • Improves sleep quality and deep sleep duration
  • Supports healthy body composition
  • Well-established safety profile from clinical use
  • May improve skin elasticity and bone density over time

Side Effects

Injection site pain or rednessmild
Facial flushingmild
Headachemild
Dizzinessmild

Mechanism of Action

1

Binds GHRH receptors on anterior pituitary somatotrophs to stimulate GH synthesis and secretion

2

Preserves the natural negative feedback loop of the GH-IGF-1 axis

3

Promotes GH release that follows the endogenous pulsatile pattern

Contraindications

Do not use this peptide if any of the following apply:

  • Active malignancy
  • Hypersensitivity to sermorelin or mannitol
  • Pregnancy or breastfeeding
  • Obesity-related GH suppression may reduce efficacy

Storage & Reconstitution

Unreconstituted (Powder)

Temperature2–8°C (36–46°F)
DurationUp to 3 months

Reconstituted (Mixed)

Temperature2–8°C (36–46°F)
Duration2-4 weeks

Research Summary

Preclinical

Sermorelin was FDA-approved in 1997 under the brand name Geref for pediatric GH deficiency diagnosis and treatment. Clinical trials demonstrated its ability to restore physiologic GH secretion patterns. It was voluntarily withdrawn from market in 2008 for commercial reasons, not safety concerns, and remains available through compounding pharmacies.

Frequently Asked Questions

Common questions about Sermorelin

UK-Specific Information

Exclusive data points and guidance for UK residents using Sermorelin

UK Lab Testing

UK Lab Testing

Recommended labs: Medichecks, Thriva (£89-£149 for peptide safety panel)

Why this matters: UK-specific lab testing guidance not available on US competitor sites

Commonly Stacked With

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