Puressentiel anti lice complete treatment lotion comb works mechanically by obstructing the respiratory openings of the lice larvae and nits it contains 4 soothing essential oils with antiseptic properties lavender clove tea tree geranium to relieve scalp itching the treatment has a pleasant fresh fragrance and leaves hair soft and silky r r 1 bottle is enough to treat 1 person with long hair or 2 3 people with mid lengthshort hair