Copper Peptide

Copper Peptide (GHK-Cu) is one of the best-known copper tripeptide complexes in cosmetic formulation, referring to the INCI ingredient Copper Tripeptide-1. It is supplied as a slightly dense, transparent (characteristically blue) liquid concentrate for professional formulators building leave-on serums, creams, and specialty water-phase cosmetics sold in the US market.

For US formulators, this concentrate integrates into water-based systems where a recognizable copper-peptide story, smooth sensorial profile, and premium positioning matter. Copper Tripeptide-1 is water-soluble and is typically added to the water phase during cool-down to protect the peptide from heat. Typical finished-formula use delivers approximately 1–4% of the supplied solution in leave-on products when used at supplier-recommended levels — commonly targeting roughly 0.05–0.2% Copper Tripeptide-1 in the final formula. Begin at the lower end of the range, then adjust for clarity, feel, and label goals.

Formulation discipline matters with copper peptides. GHK-Cu should be kept away from strong chelators that can strip copper from the complex, from high concentrations of pure ascorbic acid, and from strong reducing agents or certain sulfur compounds and high levels of direct acids that can disrupt the copper-peptide bond. It performs best at a mild, skin-friendly pH and is most successful as the featured active in its own leave-on formula or paired with compatible, gentle ingredients. Robust preservation is essential, and leave-on formats are the appropriate vehicle because contact time supports the commercial story.

In compatibility terms, Copper Peptide pairs well with hyaluronic acid and other humectants, with soothing and barrier-supporting cosmetic ingredients such as panthenol, ceramides, and centella, and with gentle hydrating systems. Many brands keep copper peptides in a dedicated leave-on step separate from high-dose vitamin C, strong AHAs/BHAs at low pH, or high-strength retinoids — not because the ingredient is unsafe, but because those combinations can compromise the copper complex or create instability. The distinctive blue color of copper peptide solutions is a recognizable visual cue that signals copper peptide to ingredient-literate buyers.

This listing is structured for clear Google indexing and B2B conversion: trade name, INCI, usage guidance, solubility, and storage in one place. IngredientOS supplies professional raw cosmetic ingredients for formulators, labs, and brands — not ready-to-use consumer skincare products. Confirm full INCI, active percentage, and supplier CoA details before scaling production.

For a launch collection, Copper Peptide (GHK-Cu) is a flagship cosmetic active hero. It can anchor a premium leave-on serum, a water-phase essence, or a high-end cream positioned around firmness, smoothness, and copper-peptide recognition. Handled correctly, it delivers a credible, research-associated copper-peptide story with strong search equity under both "GHK-Cu" and "Copper Tripeptide-1."