Kirkland Signature
Purified Drinking Water
Trusted GoodClean by how shoppers actually think — no artificial anything, no hidden 'natural flavors.'
Where to buy →Why it’s Trusted Good
No artificial colors, flavors, sweeteners, synthetic preservatives, or hidden “natural flavors.”
Trusted, not Gold, because of: calcium citrate, additives present (4).
Ingredients
Purified Water, Potassium Bicarbonate, Sodium Bicarbonate, Calcium Citrate, Sodium Chloride, Magnesium Oxide
NOVA processing group: 1/4
Last verified 6/9/2026 · data via Open Food Facts.