Non-toxic. Kills lice & nuts through dehydration; specialized metal comb eliminates dead lice & nits; pesticide free, homeopathic formula. America's No.1 non-toxic brand. Includes a stainless steel comb. Includes a stainless steel comb. 3 easy steps! Finally, a safe way to kill lice without potentially toxic pesticides. Why Choose Licefreee! Gel: Non toxic; kills lice & nits; metal comb included; no pesticide resistance; pesticide free; pleasant free; safe for repeated use; environmentally safe. Pesticide Treatments: Kills lice & nits. Licefreee! Gel is: 100% effective metal comb recommended by school nurses and pharmacists; does not contain harmful pesticides (permethrin, pyrethrum or lindane); patented formula kills lice and nits through dehydration; herbal spice scent makes application pleasant for parent and child; safe for repeated applications, you do not have to wait 7-10 days.