After you have used the award-winning Nitty Gritty NitFree Comb to clear an infestation, we recommend daily use of our Nitty Gritty Conditioning Defence Spray to keep those pesky lice from crawling back on to your little one’s heads. It's a carefully chosen blend of ingredients with a lovely grapefruit scent, that smells great to us, but not so great to head lice! It not only keeps those pesky lice at bay but keeps everyone's hair fragranced, soft, shiny, de-tangled and in tip-top condition.