Elastic hair scrunchies impregnated with 100% natural oils of peppermint, lavender, tea tree, citronella, Indian henbane, rosemary and fennel, biochemical agents and a fresh fragrance to help keep lice away and prevent them from nesting on the head. N-Lice® is a 100% natural product, is paraben-free and can be used on children 3 years and older.