Purple De-Yellowing Shampoo: This shampoo is ideal for light fur: white, blue, cream, silver, etc. It prevents mustaches from yellowing. It moisturizes and gives shine to the coat. "Photo-câlins offers you high-quality, healthy and effective shampoos & masks that respect the skin of your dog & cat. Made in France They contain no chemicals, guaranteed paraben-free, silicone-free, sulfate-free. Perfect range of cosmetics to highlight your little ones on a daily basis as well as for exhibitions." Manual : - Use pure or dilute 1 part shampoo to 3 parts lukewarm water. Apply evenly to wet hair, emulsify, leave for 5-10 minutes, rinse thoroughly. Since the products are 100% natural, it is recommended to keep the mask in the refrigerator for better conservation and application.