Our formulas combine GHK-Cu Copper Tripeptide-1 with complementary cosmetic ingredients selected for modern skin and hair care.

Below is a selection of published research relating to ingredients used across the Cu⁺ Hair & Skin range. We focus on cosmetic outcomes such as the appearance of smoother skin, hydration, elasticity and the physical condition of hair.

Cosmetic Research Overview

Skin

• Copper peptides are widely used in topical cosmetic formulations.
• Research has explored GHK and GHK-Cu for the visible appearance of fine lines, wrinkles, firmness and elasticity.
• Hyaluronic acid is widely used in skincare for hydration and has been studied in topical cosmetic formulations for skin hydration and elasticity.
• Cosmetic peptides remain an active area of research, and results from individual ingredient studies should not be assumed to represent the performance of a finished formula.

Hair

• Hair care ingredients can influence physical properties such as strength, smoothness and manageability.
• Panthenol has been studied for its interaction with the hair fibre and its effect on tensile strength.
• Cosmetic hair products are designed to improve the appearance, feel and condition of the hair.
• Ingredient research does not establish that a finished cosmetic product will produce the same results.

Silke Karin Schagen
Cosmetics (2017)

Key takeaway: A review of topical peptides used in cosmetic skincare, including copper tripeptide.

• Reviews the use of peptides in topical cosmetic skincare.
• Includes copper tripeptide among established cosmetic peptides.
• Discusses cosmetic research relating to the visible signs of skin ageing.
• Reviews outcomes including the appearance of wrinkles and skin condition.
• Highlights that the quality and amount of evidence varies between individual cosmetic peptides.

Jennifer M. Marsh et al.
International Journal of Cosmetic Science (2026)

Key takeaway: Panthenol was shown to interact with the hair fibre and improve measured hair strength.

• Panthenol was shown to penetrate into the hair fibre.
• Researchers identified interactions between panthenol and hair proteins.
• Panthenol-treated hair demonstrated higher break stress than untreated hair.
• Panthenol-treated hair also demonstrated increased elastic modulus.
• The findings support the use of panthenol as a cosmetic hair-conditioning ingredient where hair strength is a desired property.

Seyedeh Maryam Mortazavi, Seyyed Ali Mohammadi Vadoud, Hamid Reza Moghimi
BioImpacts (2025)

Key takeaway: This review examines GHK and GHK-Cu specifically in the context of topical anti-wrinkle cosmetic formulations.

• GHK is discussed as a peptide used in topical cosmetic skincare.
• GHK-Cu is used in cosmetic products formulated for the appearance of ageing skin.
• The review examines its potential relevance to the appearance of fine lines and wrinkles.
• Skin permeability and formulation are identified as important considerations for topical peptides.

Tatjana Pavicic et al.
Journal of Drugs in Dermatology (2011)

Key takeaway: Topical hyaluronic acid formulations were studied for cosmetic skin hydration and elasticity.

• The study evaluated topical hyaluronic acid formulations of different molecular weights.
• Topical application was associated with improved skin hydration.
• Improvements in measured skin elasticity were also reported.
• The research supports the established use of hyaluronic acid in topical cosmetic skincare.
• Hyaluronic acid is included in selected Cu⁺ Hair & Skin formulas as a hydration-focused cosmetic ingredient.