Parents often ask us… "I already used a lice removal shampoo so why are there still LIVE bugs crawling on my child’s head??" Most over the counter and prescription shampoos use chemicals to destroy the nervous system of the louse. Today’s strains of lice are resistant to chemicals. And don’t forget…you are using poison to kill a bug. YOU JUST PUT THAT ON YOUR CHILD’S HEAD!!Our shampoo is as gentle as baby shampoo and is enzyme-based. Simply apply it to wet hair and lather it up. As the suds touch the louse, the enzymes break up its shell and kills it. LICENDERS PROFESSIONAL SHAMPOO Is totally safe, non-pesticidal and FDA approved Effectively eliminates lice and dissolves their nit glue.Lab tested for dermal and ocular sensitivity Has a pleasantly clean aroma of peppermint.We are so sure that Licenders Products will work for you that we offer a 100% prompt refund guarantee.