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For me, the best part of a shower is gliding my hands through my freshly-conditioned hair. Once your shampoo has finished cleansing away dirt, the conditioner steps in to reintroduce some moisture.

I only use it once a week and follow up with a deep conditioner. “The Olaplex No. 4 Blonde-Enhancer Toning Shampoo contains Bis-Aminopropyl Diglycol Dimaleate, a molecule that repairs hair ...