CO&SO Hair dye bl.clair ash 10A ROBenefits of Color Soin Hair Dye: It is a permanent hair dye; Covers 100% white threads; Respects the structure of the hair; It minimizes the risks of allergy and rickets; It is a dermatologically tested hair dye; Protects and takes care of your hair, giving it shine; It contains vegetable proteins and essential oils that deeply nourish the hair; The application is simple and practical, so that you can dye your hair decoration right at home; Provides long-lasting coloring; The hair dye does not contain ammonia, resorcinol or silicone.