What is GHK-Cu?

What is GHK-Cu?

GHK-Cu (glycyl-L-histidyl-L-lysine with copper) is a naturally occurring peptide in human blood that’s widely used in skincare products for wound healing and anti-aging benefits.

Key Facts

Fact	Detail
Natural	Yes - found in human blood
Primary Use	Topical skincare
Evidence Level	Moderate (for topical use)
Availability	Legal in cosmetics

How Does It Work?

GHK-Cu helps with:

• Stimulating collagen production
• Promoting wound healing
• Supporting skin regeneration
• Providing antioxidant benefits (via copper)

Where Is It Found?

GHK-Cu is a common ingredient in:

• Anti-aging serums and creams
• Post-procedure skincare
• Wound healing products
• Hair growth formulations

Evidence Quality

Unlike many peptides, GHK-Cu has reasonable evidence for its topical uses:

• Multiple human studies on wound healing
• Cosmetic trials showing skin improvement
• Comparable to retinol and vitamin C in some studies

What to Look For

When buying GHK-Cu products:

• Look for reputable brands
• Check concentration (typically 0.01-1%)
• Consider formulation stability
• Copper peptides need proper formulation

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This guide is for educational purposes only.