Carrier Peptides

Carrier Peptides — a class of peptides that stabilize and deliver trace elements, most often copper, to the skin where they support enzymatic and repair processes. They are best known through copper peptides like GHK-Cu, where the peptide shuttles the mineral into the skin. Their role is largely one of transport and stabilization rather than direct signaling.

Key points

• Carrier peptides bind and transport trace minerals, especially copper, that skin uses in various processes.
• The most recognized example is GHK-Cu, a copper-carrying tripeptide.
• By delivering copper, they support enzymes involved in collagen formation and antioxidant defense.
• They are often discussed alongside signal peptides but differ in their transport-focused function.

Frequently asked

What do carrier peptides actually carry?

They typically carry trace elements such as copper, delivering and stabilizing these minerals so skin can use them in repair and structural processes.

Are carrier peptides and copper peptides the same thing?

Copper peptides like GHK-Cu are the best-known type of carrier peptide, but the carrier-peptide category more broadly describes peptides that transport trace elements.

Related topics

• Vitamin C in Skincare
• Retinol: The Complete Guide
• Signal Peptides
• Peptides in Skincare
• Enzyme-Inhibitor Peptides
• Copper Peptides (GHK-Cu)
• Retinol vs Peptides
• Retinol + Peptides

This is a foundational entry in the SYNC Skin Encyclopedia and is expanded over time. Educational information only — not medical advice.