Nexxus Assure Replenishing Nutrient Shampoo 13.5 oz - helps hair maintain its optimal health by infusing the hairshaft with an abundance of time released nutrients. Assure is fortified with NexxuSphere technology, to provide the sustained delivery of Antioxidant Vitamins, vegetable ceramides, avocado oil, essential fatty acids and soybean lipids. These nourishing ingredients effectively combat the daily stresses from harsh environmental elements including heat, sunlight and pollutants. Assure dramatically improves color treated hair's radiance, softness and strength. Fortified with NexxuSpheres. Advanced microsphere technology provides the gradual release of hair strengthening ceramides, replenishing nutrients, antioxidants and UV protectors. A Nexxus exclusive, this breakthrough, time release feature gives hair sustained health, radiance, and wellness.