Ultra Hydra Source Leave-In Cream - The Biolage Ultra Hydra Source Leave-In Cream, infused with Cupuau Butter, is for very dry hair. Provides 72 hours of moisture & frizz control.BenefitsFor very dry hairLeaves hair with weightless conditioning and softnessPenetrates the deepest levels of the hair fiberFree of silicones, parabens and mineral-oilsResearch Results72 hours of moisture and frizz controlKey IngredientsInfused with Cupuau Butter - Ultra Hydra Source Leave-In Cream