The Nutri-Ox system of shampoo, conditioner and densifying tonic was formulated to help maintain the optimum scalp surface environment for healthy, thicker, fuller-looking hair. Clinically and dermatologically tested.Gently cleanses hair and scalp and removes excess follicle-clogging sebum to help maintain the optimal scalp environment for healthy looking hair. Clinically & Dermatologically tested.Conditions colored or chemically-treated hair from root to tip to help maintain the optimal scalp environment for healthy looking hair that doesn’t feel weighed down. Clinically & Dermatologically tested.Nutri-Ox products are animal test-free and PETA vegan certified. Our products are NOT tested on animals. We test all our products on people!Nutri-Ox products are proudly made in the USA at our near zero waste manufacturing facility in upstate Geneva, New York.