Peptide
GHK-Cu
Also known as: Copper peptide GHK-Cu
Risk:High riskStatus:Status unclear
Plain-English definition
A copper peptide used in cosmetic and peptide-marketing claims.
Why it matters
Topical cosmetic claims should be separated from higher-risk systemic claims.
Status summary
Context-dependent; cosmetic and research-use claims differ.
Evidence summary
Mixed low-certainty evidence for skin appearance; broader anti-aging claims are overstated.
Source links
- PubMed search: GHK-Cu skin clinical - PubMed
Source-discovery link for primary literature and reviews.
Related claim checks
peptides
Can GHK-Cu reverse skin aging?
GHK-Cu has some cosmetic and mechanistic skin-interest signals, but broad reversal claims are too strong.
Evidence:Human observational evidenceRisk:High risk
Related articles
Guide
Research peptides: why purity, identity and sterility matter.
Before benefit claims, readers should ask whether the substance is what the label says and whether it is appropriate for human use.
Evidence:Commercial claim