The active ingredient in Oxigen is (Bio-available oxygen supplement, 1,000 PPM per bottle as measured by an ORP meter). ASO (activated stabilized oxygen). ASO is a highly stable O4 molecule. It's not O2, so it stays in the bottle when you open it. For a report on water quality and information: Formula Four Beverages (USA) Inc. Souce: Municipal water source. 100% rPET: Recycled plastic bottle. Please recycle again. BPA free. www.drinkOxiGen.com. Product of USA.