Black Star™ is a 15-1 high concentrate, thick deep black shampoo. It is the absolute best shampoo available for darkening dark haired animals, while eliminating yellow and gray oxidation. Also removes dirt and food stains. Black Star™ is a deep cleaning and conditioning shampoo, removes odor and rinses fast! Black Star™ is tearless, pH balanced, natural, biodegradable, mild on skin and leaves an extra clean scent.