A safe, non-toxic lice, nit and scabies treatment that is used worldwide. This extra-strength, 100% pesticide-free formula contains enzymes that are derived from natural plant sources. It has been clinically proven to be effective on lice without the use of harmful pesticides or irritating chemicals. It is also effective on the nits (eggs)... it softens the glue, which holds them to the hair shaft, making them easier to remove with a nit comb. Most cases only require one treatment, so you don't need to retreat again in 7 days like other products. However, if reexposure to lice should occur, Lice-B-Gone™ can be used as often as needed.