I use a TON! A couple of palms-full. Maybe that's about a half-cup? My hair is past my shoulders, there is lots of it, it's naturally very frizzy. Also, frequently I use the conditioner as my styler and do not add any gel or anything, so I like to have a lot in there so I get a little hold. I either use NoPoo, water-rinse, or Creme of Nature every other day, sometimes more often, sometimes less. I'll use a coco-betaine shampoo ocassionally too when I feel I need it (not more than once a week, not less than every other month). Vague, I know, but taking care of my hair is an intuitive thing!