Liquid I.V. | 42,538 followers on LinkedIn. Liquid I.V. is a functional hydration company based in Los Angeles, CA. Acquired by Unilever in 2020, Liquid I.V. is the #1 powdered hydration brand in America, delivering superior hydration than water alone. Liquid I.V. utilizes LIV HYDRASCIENCE™, a science-backed formula designed with an optimized ratio of electrolytes, essential vitamins, and clinically tested nutrients to turn ordinary water into extraordinary hydration.