Kiss Colors Tintation Semi Permanent Raspberry Prism T450,Tintation is formulated with natural ingredients to ensure that your hair is not only vibrant, but also healthy and conditioned. To maximize treatment benefits, our first ingredient is Aloe Vera Water. Aloe vera water contains proteolytic enzymes and amino acids that repairs dead cells on the scalp and maintains an optimal pH balance. Aloe Vera Water also has a similar chemical make up to Keratin, the primary protein found in hair. How To Use: A preliminary allergy test should be made prior to each time using this product. Apply a small amount of product inside the elbow and leave uncovered and undisturbed for 48 hours. If any irritation, redness, burning, or itching occurs, you may be allergic to this product. Apply Kiss Colors Tintation semi-Permanent onto shampooed, towel-dried hair 1/8" away from scalp and process for at least 15 minutes. For more intense pigmentation, leave on hair for longer, for up to an hour. Rinse thoroughly and enjoy your new hair color.