Compare · all pairs
A
GHK-Cu
B
NAD+
A side-by-side look at what GHK-Cu and NAD+ 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
NAD+
No FDA-approved product exists in any form
Typical dose / use
GHK-Cu
No agency-set dosing standard exists for either the topical or injectable form
NAD+
No standard dose — sold as injectable, nasal spray, or oral liquid, mostly subscription-priced
Product forms
GHK-Cu
Topical (OTC) & compounded injectable
NAD+
Injectable, nasal spray, or oral liquid
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.
NAD+
A coenzyme central to cellular energy metabolism and DNA repair; a 2026 systematic review of 113 studies found zero eligible outcome trials for injectable/IV NAD+ itself, versus a real but mixed 28-trial literature for oral precursors.
Providers ranked on this board
GHK-Cu
7
NAD+
39
Cost on this board
GHK-Cu
From $68/mo
NAD+
From $84/mo
Every fact above is reused from GHK-Cu's and NAD+'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.