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Sermorelin (Geref)

Sermorelin acetate (GHRH(1-29)-NH2; GRF(1-29)-NH2)

Early-Stage ClinicalInvestigationalPrimary Endpoint Met

Previously FDA-approved (Geref, discontinued 2008). No currently marketed FDA-approved product exists. Available through compounding pharmacies.

A synthetic peptide that stimulates the pituitary gland (a small gland in the brain) to release growth hormone naturally by mimicking the body's own growth hormone-releasing signal. It was previously FDA-approved for children with growth hormone deficiency and is now widely used through compounding pharmacies for anti-aging, body composition, and sleep support in adults.

5 studiesReviewed 2026-03-12Subcutaneous injection · Intravenous (diagnostic use only)

This entry is a cited research summary, not an established treatment reference. Dosing language is included as source context, not as medical instruction.

Safety Summary

Overall adverse effect profile is mild. Majority of events are transient and resolve with continued use. SAEs were rare in published trials. The development of anti-sermorelin antibodies is common but has not been associated with reduced efficacy or increased side effects in clinical trials. Related analog tesamorelin showed ~50% anti-drug antibody seropositivity without clear efficacy or safety impact. When combined with GHRPs, additional effects may include increased appetite (GHRP-6), occasional changes in cortisol/prolactin. Long-term chronic GH stimulation carries theoretical cancer risk (via IGF-1 elevation), but no causal link to sermorelin-specific cancer promotion established. No classical dependence/withdrawal syndrome documented.

Clinical check-in

If real-world use or exposure is being considered, review potential interactions, contraindications, and monitoring needs with a licensed clinician rather than relying on summary copy alone.

Sources: [1-5]