This kit includes a Sleek Tint Applicator Brush for easy application and professional results, Enriched with Pure Silk and Keratin Amino Acids, ChromaSilk Permanent Creme Color provides brilliant shine, silky texture and long-lasting color. ChromaSilk’s award-winning formula provides complete gray coverage with rich, vibrant results. Its low ammonia content preserves the integrity of the hair and allows colors to perform as both permanent and demi- permanent simply by switching to PRAVANA Developers. How To Use In a non-metallic bowl, mix one part permanent color with 1.5 parts creme developer 10-40V (1:1½ ), and apply color. Process for 30 minutes -- up to 45 minutes for gray coverage. Features and Benefits Silk Amino Acids act as a color carrier to help drive color deep into hair’s cortex Keratin Amino Acids strengthen hair’s fiber and help color adhere to the hair shaft Low ammonia allows color to function as either no-lift demi-permanent or permanent hair color High-level dye load provides superior coverage of gray and allows for vibrant, rich, long-lasting color Paraben-free Zero phthalates No animal testing Free from MEA and DEA EPA and CARB compliant Ingredients Silk Amino Acids Keratin Amino Acids