Bio Groom Ultra Black Color Enhancer Shampoo Tearless is a color enhancing formula that intensifies black, blue and other dark colored coats, creating sparkling accents and a rich lustrous sheen. Intensifies black, charcoal blue and other dark colored coats Creates sparkling accents and lustrous sheen Coconut oil base enriched with protein A coconut oil base enriched with Protein gives life and body to the coat. Has a neutral pH and fresh scent. Concentrated 4 to 1.