For months I had been struggling with waxy/greasy hair and tried EVERYTHING I could think of to fix it - washing more frequently, washing less frequently, switching shampoo/conditioner, double shampooing, using apple cider vinegar, and the list keeps going. I missed my thick, soft,wavy hair and was desperate to get it back. A friend finally suggested that I try Cliove clarifying shampoo. Its very gentle on hair, including color-treated hair (I've been getting highlights for decades), it got amazing reviews, and the price was perfect. It got here in one day and I immediately tested it out. I replaced did a double shampoo with this product (replaces your normal shampoo) and followed with a deep conditioner. My hair was COMPLETELY CURED!!! The recommended use is twice a month, but maybe less frequently if you don't use tons of product or if you don't have hard water/mineral buildup, and I will absolutely be doing just that.