Adds luster and fullness for optimal healthy, strong hair. Proteins provide relief from environmental damage and absorb quickly to maintain moisture balance. smooths and softens hair after shampooing for ultimate manageability. Polyquaternium-67 is a targeted conditioner that smooths and softens hair without having a volume down effect. Cocos nucifera (coconut) oil lightly replaces natural lipids from dry or damage hair. Diisopropyl sebacate is a lightweight emollient that enhances thickness without the weight. Silk and keratin proteins are film forming proteins that support body, fullness and thickness.