Oahu Alkaline Water is the original Hawaiian-owned alkaline brand, founded on the beautiful Island of Oahu. Our commitment is to deliver the best water possible to your body. We use a unique 9-stage purification process that removes harmful particles and heavy substances. Then, we add electrolytes and ionize the water to enhance its alkalinity to a pH of 9.5. The 16.9oz bottle is perfect for staying hydrated on the go. Aloha!