Compare · all pairs
A
GHK-Cu
B
Sermorelin
A side-by-side look at what GHK-Cu and Sermorelin actually are, so you can see where they overlap and where they genuinely differ before deciding which is worth researching further — no score, no “winner,” just the facts next to each other.
FDA status
GHK-Cu
No FDA-approved product — only topical, over-the-counter cosmetic listings exist
Sermorelin
No current FDA-approved product — its only approved brand, Geref, is discontinued (not for safety or effectiveness reasons)
Typical dose / use
GHK-Cu
No agency-set dosing standard exists for either the topical or injectable form
Sermorelin
No current label — the historical approved dose was 30 µg/kg/day SC (pediatric growth-hormone deficiency, discontinued)
Product forms
GHK-Cu
Topical (OTC) & compounded injectable
Sermorelin
Injectable
How it works
GHK-Cu
A copper-binding tripeptide naturally present in human plasma; its only controlled human trials (both topical) failed to beat their own comparator on the primary endpoint, and zero human trials exist for the injectable form.
Sermorelin
Activates the GHRH receptor on the pituitary gland, stimulating the body's own pulsatile release of growth hormone rather than supplying growth hormone directly.
Providers ranked on this board
GHK-Cu
7
Sermorelin
61
Cost on this board
GHK-Cu
From $68/mo
Sermorelin
From $79/mo
Every fact above is reused from GHK-Cu's and Sermorelin's own compound guides, not re-derived here. A highlighted value means that number is objectively larger or smaller — more providers ranked, a lower standing price — never a claim about which compound is “better.” Cost and provider counts are read live from each compound's own board and can change without notice.
Go deeper on each compound
GHK-Cu
Medical disclaimer: This content is for general educational purposes only and is not medical advice, diagnosis, or treatment. Always consult a licensed healthcare professional before starting, stopping, or changing any treatment.
This page is a fact comparison, not a recommendation for either compound — talk to a licensed clinician about your own situation.