Peptides are segments of proteins and occur in a wide variety in the body exerting many importantpeptides have been shown to have various benefts including (e.g. ant-aging activity. Today, dozens of peptides are used in skin care products and there aremany more currentlyin development. Even though peptides consist of natural components (amino acids most peptides that are used in personal care productsare synthetic, Peptides are extremely hydrophilic water-solublel and therefore easy to use in cosmetic formulas. However, peptides are relaively heat sensitiveIn order to be functional,peptides must be stable in their base formula,they must be paired with a specifc carrier that enhances their absorption into the skinand they must be able to reach their target cell groups without breaking down. Because peptides are small,they can penetrate the skin's protective bariers toget to the deeper layers of the dermis.

Bioactive peptide, as an efficacious peptide molecule, has the characteristics of small molecular weight, easy absorption, clear efficacy, enhancing skin permeability, good stability and strong solubility, etc. It is gradually applied in cosmetics, playing the role of stimulating skin cell repair and regeneration, promoting hair follicle differentiation, etc., and it has made remarkable breakthroughs. The bioactive peptide that plays an effective role in cosmetics is called cosmetic peptide.