In this video head lice expert Dani Knapp from Nitty Gritty shows how to use the Nitty Gritty head lice comb on different textured hair such as afro hair, curly hair or simply thicker coarser hair. The Nitty Gritty head lice comb is designed to be used on all hair types and no chemicals are necessary when treating head lice with the Nitty Gritty comb.