Longevity network
Longevity Centers of America (Netzwerk)
- Hormone therapy (HRT / BHRT)
- Peptide therapy
§ — Substance profile
GRF (1-29) · Geref · Growth-hormone-releasing hormone analogue
01 — Regulatory status
Regulatory status · United States · as of September 2026
Previously FDA-approved as Geref for pediatric growth hormone deficiency and diagnostic use; the approved product was discontinued in 2008 for commercial reasons. Widely compounded; its 503A basis must be verified against the current bulks list before publication.
Source: FDA 503A Bulks List · PCAC meeting records · verified September 2026
Reviewed September 2026 · Sources: FDA, EMA
02 — Researched for
Growth hormone deficiency; GH axis stimulation in adults.
03 — What the evidence shows
Controlled trials supported the pediatric indication. Adult anti-aging use rests on small studies showing GH and IGF-1 increases, not on outcome data.
04 — What is claimed but not shown
Reversal of age-related decline, fat loss and improved sleep in healthy adults.
05 — Known risks
Injection-site reactions, flushing, headache; IGF-1-related long-term concerns in non-deficient adults.
06 — Researched for these goals
Related substances
07 — Questions for your physician
Listing in the registry is not an endorsement of any substance or protocol, and it is not a statement that a treatment is approved.
Reviewed September 2026 · Sources: FDA, EMA
This page reports on the state of research and regulation for orientation. It is not medical advice, not a recommendation for or against any substance, and not an offer. Regulatory status changes; the date shown is the date of our last verification. Discuss any treatment with a licensed physician.