: Boasts a naturally occurring pH of 8.4. It is slowly filtered through lava rock at the Ölfus Spring in Iceland and is Carbon Neutral certified.
: Claims and often tests at a pH of 10. It is sourced from underwater springs and enhanced with electrolytes. Buyer's Comparison Guide Choosing Ionized Alkaline Water Wisely - You 1st Pharmacy
: Offers a pH of 9.5 and is packaged in 100% recycled, ocean-bound plastic. It is vapor-distilled and ionized with added minerals.