The semi-permanent and demi-permanent hair dye colorants we offer are acid dyes, basic dyes, and disperse dyes. These colorants do not require oxidation to develop and impart color into the hair shaft. These dyes are direct hair colorants. Pylam can provide you with dyes that satisfy multi-national regulations so that you can minimize your R&D (research and development) and inventory expenses while maximizing the markets that you can serve and the profits that you can earn. We will create the best color for your products, which could include everything from spray-on Halloween hair dyes, to semi-permanent punk-rock colors, to hair products that are used in the finest salons.