Learn · Peptides
Sermorelin vs ipamorelin: how they work and where FDA lists each
Short answer
Sermorelin and ipamorelin both lead the pituitary gland to release growth hormone, but by different routes. Sermorelin is a version of growth hormone-releasing hormone (GHRH). Ipamorelin belongs to a different group, growth hormone secretagogues, which act on another receptor. Neither has an FDA-approved product on the market. FDA’s list of bulk drug substances that may present significant safety risks in compounding includes ipamorelin acetate; sermorelin is not on that list (FDA page current as of April 22, 2026).
Side by side
| Comparison point | Sermorelin | Ipamorelin |
|---|---|---|
| Type | GHRH analog | Growth hormone secretagogue |
| FDA-approved product today | None marketed (Geref discontinued in 2008) | None |
| On FDA’s compounding safety-risk list (Category 2) | No | Yes, ipamorelin acetate |
| How it is sold | Compounded, by prescription | Often sold online as "research use only" products, and by some compounders |
What FDA's Category 2 list means
FDA keeps a list of bulk drug substances that were nominated for use in compounding and that it says may present significant safety risks. A substance on that list raises a question you should ask before buying: who makes this product, and under what rules?
The same FDA page also names other peptides that were nominated and later withdrawn by the nominators, including BPC-157, CJC-1295, GHK-Cu and thymosin beta-4 fragment (TB-500).
"Research use only" products
Many peptides, including ipamorelin, are sold online labeled "for research use only" or "not for human consumption." Those products are not prescription medicines, are not FDA-approved, and are not made under the rules that apply to a licensed pharmacy filling a prescription.
What it costs online
This guide does not yet record peptide prices for the programs it ranks. The one sermorelin price we read on a seller's own page is in the box below.
Surfbound Health · Operated by the publisher of this guide
Surfbound Health sells compounded sermorelin after a licensed provider review: injectable at $169 a month (low dose) or $249 a month (high dose) on a one-month plan, and oral (sublingual) from $149 a month, with no membership fee. Prepaid 3-month and 6-month bundles are also listed. Lab work is typically required. Compounded sermorelin is not FDA-approved. Surfbound Health does not sell testosterone therapy, is not a provider in this edition and takes no part in its ranking. Source: surfbound.co/sermorelin, read November 6, 2026.
Surfbound's sermorelin pricesOpen Water RX LLC publishes this guide, GLP1BuyerGuide.com and HRTBuyerGuide.com, and operates Surfbound Health, a consumer telehealth brand.
Frequently asked questions
What is the difference between sermorelin and ipamorelin?
Sermorelin is a version of growth hormone-releasing hormone. Ipamorelin is a growth hormone secretagogue that acts on a different receptor. Both lead to growth hormone release.
Is ipamorelin FDA-approved?
No. There is no FDA-approved ipamorelin product, and FDA lists ipamorelin acetate among bulk drug substances that may present significant safety risks in compounding.
Is sermorelin on FDA’s compounding safety-risk list?
No. Sermorelin is not on that list as of the FDA page current April 22, 2026.
Are "research use only" peptides legal to take?
Products labeled "for research use only" or "not for human consumption" are not prescription medicines and are not FDA-approved for use in people.
Sources
This page summarizes published prescribing information and medical references on the dates shown. It is not medical advice and does not recommend a treatment.