Skin biology research · Evidence review
GHK-Cu
Do cell findings establish visible skin benefits?
What a cell-culture experiment can tell us about skin biology—and what it cannot tell us about visible results.
What was actually studied
Human fibroblasts grown in a laboratory, rather than people receiving a cosmetic or injection.
What the paper found
- GHK-Cu increased production of certain extracellular-matrix molecules in the selected experiment.
Where the claim goes beyond the evidence
- A cellular response does not establish visible wrinkle reduction or hair regrowth in people.
- This study cannot establish whether a particular topical or injectable product works.
Safety context
FDA notes limited human safety data and immune-response concerns for injectable GHK-Cu. Route matters.
A research summary cannot establish that a product is suitable for you. Clinical decisions belong with a qualified health professional.
Read the original sources
- Original research — PubMed abstractStimulation of sulfated glycosaminoglycan synthesis by the tripeptide-copper complex glycyl-L-histidyl-L-lysine-Cu2+. ↗
- FDA safety informationCertain Bulk Drug Substances for Use in Compounding that May Present Significant Safety Risks ↗