Copper Peptide (GHK-Cu): K-beauty ingredient guide 구리펩타이드
⏱ 1 min read
⚡ Quick answer: The distinctive blue serum. Copper peptides are widely used but formulation-sensitive — direct acids and pure vitamin C in the same layer can destabilise them, which is why they are usually kept to their own step.
The distinctive blue serum. Copper peptides are widely used but formulation-sensitive — direct acids and pure vitamin C in the same layer can destabilise them, which is why they are usually kept to their own step.
What Copper Peptide (GHK-Cu) does for your skin
- A signal peptide studied for its effect on the look of firmness
- Often chosen as a gentler alternative to retinoids
Best for
🌌 Copper Peptide (GHK-Cu) compatibility map
Tap any ingredient to open its guide. ━ pairs well · ┈ use with care.
⚠️ Be careful pairing with: Vitamin C, AHA (Glycolic/Lactic), BHA (Salicylic) — introduce gradually or alternate nights.
🤰 Pregnancy: Ask your doctor before use during pregnancy. · ⏰ Use: PM
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✍️ Written & reviewed by the KoreaPlus Editorial team — dermatologist-informed, cosmetic-science researched & source-cited. Last reviewed: 2026-08-23.
General educational information using cosmetic structure-function wording — not medical advice. Always patch-test new actives. © KoreaPlus.