Peptide library › Growth hormone axis
Sermorelin
Also known as GRF 1-29, Geref
Short GHRH fragment that stimulates natural growth hormone release.
What people use it for
- Growth hormone deficiency (historic approved use in children)
- Anti-aging and sleep/recovery (popular use)
What Sermorelin does in the body
Consists of the first 29 amino acids of GHRH — the active portion. It prompts the pituitary to release growth hormone, which preserves the body's normal feedback loops. Its effect is short-lived.
Strength of evidence
Moderate for GH deficiency in children; limited for anti-aging uses in adults.
Look up the evidence
- Reviews on PubMed: Summaries of the published research
- Clinical trials on PubMed: Published studies in people
- ClinicalTrials.gov: Registered trials, past and ongoing
Live searches of official databases. New to the terms? See the glossary.
Reported side effects & risks
- Injection-site pain, redness or swelling
- Flushing, headache
- Dizziness
Who should avoid it or take extra care
- Pregnant or breastfeeding
- Active cancer
- Under 18 (except under specialist care)
Not a complete list. Check with a doctor or pharmacist about your own health and medicines.
Regulatory status
Was FDA-approved (Geref) but the branded product was discontinued by its manufacturer. Now mainly available through compounding pharmacies.
How it's taken
Route: Injection under the skin, usually at night
How long it lasts (half-life): About 10–20 minutes
Storage
Unreconstituted (powder) vials are usually kept refrigerated or frozen and away from light. Once mixed with bacteriostatic water, keep refrigerated and do not freeze; follow the supplier's stated beyond-use date.
Mixing guides
How much water to add and what each syringe mark holds, worked out for your own dose:
Latest research & news
- Peptides in urology and sexual medicine: clinical effectiveness, dosing, indications, and safety: a narrative review
Research · Review · PubMed · Sex Med Rev · 30 Sept 2026
Picked automatically from PubMed, ClinicalTrials.gov and the FDA, and updated daily. Early, lab and animal studies often don't carry over to people.
Keep track of Sermorelin privately
Fiala is a free app for logging doses, tracking vials and setting reminders. No account, and everything you log stays on your phone.
Open Sermorelin in Fiala How to installMore in Growth hormone axis
- TesamorelinGHRH analog approved to reduce excess abdominal fat in people with HIV-associated lipodystrophy.
- CJC-1295Long-acting GHRH analog, often paired with ipamorelin in popular protocols.
- IpamorelinSelective growth hormone secretagogue (ghrelin-receptor agonist).
- HexarelinPotent synthetic growth hormone secretagogue related to GHRP-6.
- GHRP-2Synthetic growth hormone–releasing peptide used in Japan as a diagnostic test.
- GHRP-6First-generation growth hormone–releasing hexapeptide known for strong hunger effects.
- IGF-1 LR3Modified, longer-acting form of insulin-like growth factor 1.
- IGF-1 DESShortened, fast-acting form of insulin-like growth factor 1 sold as a research chemical.
- MK-677Oral growth hormone secretagogue. It is not a peptide, but is commonly tracked alongside them.