More than an acid free primer: Colour Gloss pH Nail Prep is used to remove moisture and oils on the surface of the nail plate prior to all artificial nail services or in conjunction with manicure and pedicure services prior to polish. This product does not contain any fragrances or dyes that could leave residue on the nail plate. It is a Butyl Acetate based product, providing fast and efficient surface dehydration to achieve proper pH balancing for better adhesion of products.