Natural preventive shampoo for adults and children. In addition, sherry vinegar cleans and gives shine to hair. Tea tree oil has shown action against nits because it prevents their adhesion and white willow has soothing and anti-seborrheic properties. Instructions for use: External use.\ Apply generously to wet hair, massage for one minute on the scalp. Rinse with plenty of water. Replaces frequently used or daily shampoo.