Noodle & Boo Extra Gentle Shampoo is a high-moisture, low-suds formula that gently cleans hair and hydrates the scalp preserving the moisture in baby's skin. Provitamin B and Vitamin E keep hair soft and shiny. Our pediatrician-tested shampoo is mild enough for daily use and can be used on newborns and babies with sensitive skin. Nutrient-rich milk protein nourishes and conditions hair. Noodle & Boo does not use numbing agents in "tearless" products; rather gentle ingredients are chosen that will not irritate little eyes. Never tested on animals.