"Introducing Matrix Sew Color, vibrant, long-lasting, professional hair color, made easy. Mix Matrix Sew Color with 20-volume developer in a one-to-one ratio. Stir until smooth. Section dry, unwashed hair. Start applying from roots to ends for full coverage. Process for 35 to 45 minutes, depending on your desired result. Rinse thoroughly, shampoo, and condition. Style as usual. Matrix Sew Color, rich color, brilliant shine, confident results, professional color at home or in the salon. It's color you can trust. Shop hair color and hair care products on SellersPri.com."