The term MER MAKEUP can be broken down into two parts: MER and MAKEUP. The first part, MER, is a 3-letter acronym for EAU, which stands for EAU de Parfum, a type of perfume. The second part, MAKEUP, refers to cosmetics, such as foundation, blush, and eyeshadow. Together, MER MAKEUP is a term used to describe a type of MAKEUP that combines both perfume and cosmetics. This type of MAKEUP is designed to provide a long-lasting scent while also providing the user with a range of cosmetic options.