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    Did you mean Lipid Layer?
    Glossary Lipid Layer

    thin, oily barrier covering cell surfaces, retaining moisture

    The lipid layer is a thin, oily barrier that covers the surface of cells, including those in the skin and hair. It helps to retain moisture, protect against environmental damage, and maintain the integrity of the cell structure. In the context of hair, the lipid layer contributes to the hair's shine and smoothness by sealing in moisture and reducing friction.

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    1. GHK-Cu Copper peptide used in skin and hair cosmetics
    2. Vitamin D Vitamin made in the skin from sunlight, also taken as a supplement
    3. Peppermint herb and oil thought to stimulate skin and hair
    4. Hydrocortisone Mild corticosteroid used on the skin and scalp
    5. Dexpanthenol Provitamin B5, a moisturiser in hair and skin products