Nitty Gritty NitFree Comb Product Description Nitty Gritty NitFree Comb The Nitty Gritty NitFree Comb is a specially designed head lice and nit removal comb for use on wet, conditioned hair. Its closely spaced metal teeth feature a micro-spiral design intended to help remove head lice, eggs (nits) and empty egg cases from the hair. Suitable for the whole family, the comb provides a chemical-free, reusable approach to physically removing lice and nits. The robust stainless-steel teeth and comfortable handle make it suitable for repeated combing as part of a regular head lice detection and removal routine.