Best selling Delacet is a unique 100% natural solution that kills head lice and nits with no harm to humans. Clinical trials proved 100% mortality of head lice and their eggs after applying DELACET for 2 hours. It also treats parasites and nits anywhere on human body (under arm pits and in the pubic area). Manufactured for over 40 years, this outstanding herbal product has a very long proven record of effectiveness. It is suitable for adults and children (over 12 months) and all hair types.