Peptides – Cosmetic Uses in Skin Care

What Are Peptides?

Peptides are short chains of amino acids derived from proteins. In cosmetic skin care, they are used for their ability to interact with the skin and support conditioning and moisture retention.

Peptides have also been investigated as cell-signalling ingredients, with research and cosmetic applications focusing on their potential role in supporting collagen-related processes and improving the appearance of skin.

Peptides in Skin Care

Peptides are commonly incorporated into facial creams, serums and other products designed for mature or dry skin. Their water-binding properties can help support skin hydration and maintain a smoother skin surface.

Traditional peptide ingredients have presented formulation challenges because peptides can be susceptible to degradation by enzymes. Advances in cosmetic technology have led to the development of synthetic peptides, including hexapeptides, pentapeptides and polypeptides, designed for improved stability and targeted cosmetic functions.

Some advanced peptide systems are also designed to act as carriers for other molecules, although their performance depends strongly on the specific peptide, formulation and delivery system.

Ingredient Information

Ingredient Type: Protein-derived cosmetic ingredient
Common Types: Hexapeptides, pentapeptides, polypeptides
Primary Cosmetic Functions: Skin Conditioning, Humectant

CAS / EINECS/EC: Not specified for peptides as a general ingredient category.

Source: Dweck, Anthony. Handbook of Natural Ingredients (Dweck Books 4) . Dweck Data. Kindle Edition.