Puressentiel Anti-Lice kills lice, larvae & nits in complete safety. Its 100% natural formula, free from chemical agent combines: Plant oils of coconut, calophyllum, jojoba, sunflower, sweet almond castor, which act mechanically by obstructing the respiratory openings of the lice, larvae & nits. The lice are unable to develop resistance due to the asphyxiation mechanism. Contains essential oils of lavender, clove, tea tree geranium, which are soothing & antiseptic, ideal for relieving scalp itching. Its formula is gentle on hair & the environment, & leaves hair silky & shiny. Its applicator bottle is easy & practical to use. It has a fresh & pleasant fragrance. For use by adults & children over 3 years. No chemical agent, no silicone, no dimethicone, preservative-free synthetic perfume free, no propellant gas.