Lastly, I did the thing I dreaded most: I gave up my nightly shampoo habit. “I would say to shampoo and condition every other day or every three days,” Garren advised. It was rough at first, but I eventually got used to the new normal, especially when I discovered my new hero product, Pureology Strength Cure Cleansing Condition . I never thought a cleansing conditioner would do anything for my fine hair but make it flat and greasy. To my surprise, it made it feel fluffy and clean, and it also felt smoother and more hydrated than it did after I washed with regular shampoo.