100% Piper Methysticum (Kava) Root Powder Our Kava powders are made from the finest quality Noble Kava Roots, thal is traditionally used in Pacific Islands medicine to support mind & body relaxation, calm and soothe nerves and assist sleep. Kava is a drink that originates from the Pacific Islands. It is made from roots of the kava plant and has been used for centuries by Pacific Islanders to enhance relaxation.