Macrobiotics: The study of prolonging life with diet or other ingested substances. Malic Acid: A glycolic acid derived from apples. Mallow: An anti-inflammatory substance that helps prevent age lines and reduce eye swelling. Matt: A non-shiny surface that absorbs light. Melanin: The black pigment found in hair or skin. Melanoma: A type of skin cancer characterized by a black or dark brown pigmented tumor. Moisturizer: An emollient cream used to hydrate skin.