Picksan lice stop shampoo contains natural active ingredients giving parents peace of mind that it is free of harmful chemicals the formula includes the patented melaza extract the melaza extract consists of a special neem seed extract that is extracted from the neem tree the neem seed has been used in india to treat lice for thousands of years lice stop anti lice cares for hair is soft on the scalp and has a pleasant scent lice stop anti lice shampoo leaves hair smooth and easy to comb