Liquid IV | Liquid I.V.™’s Healthy Hydration - Fueling Life's Adventures – Liquid I.V. Liquid I.V.™’s Hydration Multiplier is an electrolyte drink mix that uses the science of Cellular Transport Technology (CTT)™ to hydrate faster than water alone. Liquid I.V. contains 5 essential vitamins that replenish and restore the body’s normal vitamin levels for a healthy recovery.