Copper Tripeptide-1

Copper Tripeptide-1 is a complex of copper with the tripeptide glycyl-L-histidyl-L-lysine (GHK-Cu), used as a cosmetic peptide. It's added for skin conditioning and a firmer, smoother look, with evidence that's moderate rather than conclusive.
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Ingredient Snapshot

Overview
A copper peptide (GHK-Cu) that helps skin look firmer and smoother.
Category
Anti-aging, Firming, Skin Conditioning, Tone/Texture
Type
Peptide

Ingredient Ratings

Overall Rating

Good

Comedogenic Risk

None

Skin Benefits

Promotes a more supple, refined appearance and may soften the look of fine lines; outcomes are not guaranteed. Helps improve the feel of skin resilience with ongoing use.

Uses In Skincare & Cosmetics

Frequently found in anti-aging serums, eye creams, and lightweight moisturizers targeting texture refinement. It’s also used in post-care gels and booster ampoules to complement routine skincare.

Comedogenic Rating

This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.

Safety

Usually well tolerated; mild irritation is possible for those sensitive to peptides or copper complexes. Patch testing is prudent for reactive skin.

Is Copper Tripeptide-1 a Good Ingredient?

Moderate evidence supports GHK-Cu for skin conditioning and a smoother appearance, and irritation is generally low in modern formulations. The data aren't conclusive enough for dramatic anti-aging claims, which is why it's rated Good rather than Great despite being a well-studied peptide complex.

Products with Copper Tripeptide-1

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