Peter Thomas Roth Mega-Rich Nourishing Shampoo has the following features: A vitamin-infused shampoo with Biotin B-7 Complex™, Vitamins C, E and Pro Vitamin B5, leaving hair clean, nourished, healthy-looking and head-turning. Biotin B-7 Complex™: helps strengthen hair to prevent breakage. Adds body and shine for thick, healthy-looking hair. Vitamins C & E: anti-oxidants that help protect against free radical damage. Pro Vitamin B5: penetrates to help weightlessly condition and nourish hair.