Co
Copper Peptides (GHK-Cu)
Copper Tripeptide-1Active
A peptide that carries copper, sold for skin repair and aging. In one trial after laser treatment, it did no better than plain aftercare.
What it does
A review describes 12-week studies with better fine lines on sun-damaged skin, but in a trial after a laser session it made no measured difference. So the evidence is split.
The evidence, graded
debatedSplit vitamin C and a copper peptide across the day. The one stability test here ran to pH 4.5, and vitamin C sits below it. That gap is the caution, not a measured loss: no study Drop has read put the two on skin together.Pickart 2015 · BioMed Research International ↗
debatedIn one small randomized trial, 13 people finished after-care with or without a copper peptide (GHK-Cu) following laser resurfacing around the mouth. Wrinkles and skin quality improved in both groups, with no difference between them, and redness cleared no faster. Only the patients’ own ratings favored the copper peptide. A review Drop also cites reports 12-week cream studies on sun-damaged skin, so the evidence splits.Miller 2006 · Archives of Facial Plastic Surgery ↗
Graded per the methodology: strong · moderate · emerging · expert consensus. A weak source on a strong claim gets the weaker label.
Also known as
copper peptide
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