The reading room / Editorial
About this open digest of the GHK-Cu literature
Who keeps this reading room, what we publish in it, and the line between editorial framing and a claim about services.
What this project is
Online GHK-Cu is a greenhouse for one molecule's evidence: the peer-reviewed literature on GHK-Cu, the copper-binding tripeptide also known as Copper Tripeptide-1, grown out where the light is good. No clinic operates here, no clinicians are on staff, nothing is compounded or sold, and none of the text is medical advice — it is published science, read at golden hour and traced back to its source.
Think of it as a public conservatory of the copper-peptide record: freely walkable, organized by what the studies actually measured. Where the evidence is strong, we say so plainly. Where it stops — at small sample sizes, at the absence of validated human pharmacokinetics, at the single-investigator origin of much of the foundational record — that gap is left in plain light rather than trimmed away.
What 'online' means here, and what it does not
The word 'online' in our name is editorial framing. It describes the register we occupy — an open, accessible, public digest of the literature — not a service we sell or a transaction we facilitate. We do not offer treatment, consultation, prescriptions, or any form of clinical care, and nothing on this site should be read as an invitation to purchase or use GHK-Cu.
GHK-Cu is a research compound. Topical Copper Tripeptide-1 is a widely used cosmetic ingredient with a long safety record, but injectable, oral, and other systemic use of GHK-Cu is not approved by any regulatory body. Every page here describes research findings using study-context framing — what was administered to which model at which concentration — and never a dosing recommendation for people.
Our editorial standard is simple: lead with what was measured, cite it to its source, and name the gaps. Every quantitative claim on this site — every collagen concentration, hair-count delta, gene-expression percentage, and stability constant — is tied to a numbered, peer-reviewed reference that you can open and read for yourself. Where the literature is mostly preclinical, or originates largely from one research group, or lacks validated human pharmacokinetics, we say so on the page rather than in fine print. If a claim is not in the published literature, it is not on this site.