GHK-Cu
Skin / Glow • Peptide • Peptide
Also known as: Copper Peptide, GHK-Copper, Glycyl-L-histidyl-L-lysine copper
Plain English Summary
A naturally occurring copper-binding peptide found in human plasma that declines with age. Widely studied for skin rejuvenation, wound healing, and anti-inflammatory effects. Available in topical skincare products.
What People Use It For
Realistic Expectations
Best Case
Noticeable improvement in skin texture, reduced fine lines, and faster wound healing.
Common Outcome
Subtle skin improvements with consistent topical use over 8–12 weeks.
Low / No Response
Minimal visible change; many 'GHK-Cu' skincare products contain too little to be effective.
Side Effects & Risks
Common Side Effects
Warnings
- Injectable forms are unregulated and not studied for safety in humans
- Quality of commercial products varies widely
Who This Is Not For
Those with copper metabolism disorders (e.g., Wilson's disease).
Commonly Confused With
Timeline of Expected Changes
Topical: 8–12 weeks. Injectable (unregulated): anecdotal timelines vary.
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Educational Content Only
This is not medical advice. Always consult a licensed healthcare provider before using any compound. No dosing or sourcing guidance is provided.