Nitty gritty aromatherapy head lice kit is for those who are worried about using chemicals nitty gritty aromatherapy is the natural and perfect companion to the award winning nitfree comb it contains 5 aromatherapy oils plus neem oil and added wheatgerm for condition and shine the kit consists of a 150ml bottle of aromatherapy solution together with a double sided plastic fine tooth comb for those of you who do not purchase the brilliant nitfree comb and facts of lice one bottle is suf