Face Emulsion AHA Byotea Exfoliating and Cell Renewal. The product is an emulsion rich in Vitamin E, helps protect the skin from environmental oxidizing agents. It revitalizes the skin by performing a moisturizing, toning and elasticizing action. AHA by Byotea is the line based on Alpha-hydroxy acids, able to revitalize, smooth and renew the skin. It effectively cleanses of impurities and improves the texture of the skin by promoting skin renewal. It is the perfect treatment to restore hydration and improve the radiance of the skin. ACTIVE: Alpha-Hydroxy acids: the so-called fruit acids have lightening and exfoliating properties and are indicated to combat discoloration, spots, post-acne signs, photo-aging and skin aging.