Many experts believe that troublesome conditions such as dandruff are linked to the presence of a certain fungus on the scalp this shampoo contains 3 tea tree oil plus peppermint oil for a stimulating and thoroughly cleansing effect this shampoo is gentle enough to be used by children and because head lice are known to dislike tea tree oil this shampoo is a trusty stand by for families who are occasionally troubled by these little unwanted visitors an excellent all round shampoo which you w