The way they described african american hair kind of Pi$$ed me off lol. I wash my hair about once a week. At first i didnt understand what people of other races meant when they complained about how they didnt have time to wash there hair, and then when i started doing hair myself, Caucassion, and African american, I noticed what they meant by it. African americans can get away with not washing there hair for about 3 weeks because are hair absorbs quickly, before there is anytime for it to matt or get greasy, or smell... I have actually never met anybody with smelly hair. But i guess it depends on the persons hair texture. But since im of mixed race. I can go about a weak up to 3 weeks, and never know the difference. I have never had oily hair unless i had put the oil in my hair manually. The only reason i do wash it once a weak is to bring my curls back after straightening it.