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Copper Peptides

A well-known serum ingredient that brands often highlight for smoother-looking skin and everyday repair.

Dropper bottle with serum
Reading ingredients on a skincare label

Spotted this on a label?

Copper Tripeptide-1

That’s the INCI name—the official way it appears on the back of your serum or cream. Same ingredient, different marketing names.

Structure (cute edition)

Simplified amino acid chain for Copper Peptides
2D chemical structure from PubChem ✨ real molecule sketch

A tiny three-bead chain (glycine–histidine–lysine) with copper tucked in—the “GHK” you’ll see in ingredient lists.

INCI: COPPER TRIPEPTIDE-1 · ~3 amino acids in our simplified view

Research & public records

Counts and links from public databases (PubMed, ClinicalTrials.gov, Wikidata, NIH drug nomenclature). Educational only — not medical advice.

Knowledge base: chemical compound — Wikipedia

PubMed: 72 indexed papers (search PubMed)

Clinical trials: 36 studies on ClinicalTrials.gov (view search)

ChEMBL: COPPER · max phase 4.0

What brands say it does

Copper peptides are short chains of amino acids paired with copper. In skin care they are usually marketed to support the skin's natural repair process and help skin look firmer and more even over time. Results vary by person, product strength, and how consistently you use it.

Where you’ll find it

Common in anti-aging serums, eye creams, and post-procedure recovery products. Look for GHK-Cu or "copper peptide" on the label.

Other names you might see

GHK-Cu Copper Tripeptide-1

Where to buy

Real purchase links from Sephora, Ulta, Target, and Amazon — tap a product to check price and buy.

Copper Peptide Pro Firming Serum
PEACH & LILY

Copper Peptide Pro Firming Serum

$49.00 · ★ 4.6

Shop at Ulta →

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Educational only—not medical advice. Results vary; talk to a dermatologist for personal recommendations.