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Protecting your hair’s health from root to tip, the Olaplex No. 0.5 Scalp Longevity Treatment is a soothing formula that nourishes the scalp’s barrier. Developed with the brand’s Proprietary Scalp Barrier-Building Complex, the gel-cream provides lipid replenishment to hydrate dry, flake-prone skin. An antioxidant-rich duo of lavender and Tazman pepper extract defend against the damaging effects of free radicals and stressors such as the sun, poor water quality and chemical products. Meanwhile, a biome-balancing blend nourishes the scalp to support a normal environment for hair growth, encouraging the look of soft, supple and strong strands.