Kirkland Signature vs Crystal Geyser: which water is healthier?

Updated · Scores from third-party lab reports · How we score

Crystal Geyser is the healthier choice, scoring 84/100 versus 63/100 for Kirkland Signature. The biggest differences are contaminants and water source.

Kirkland Signature Purified Water Plastic Bottle

Kirkland Signature

Kirkland Signature Purified Water Plastic Bottle

63
Crystal Geyser Alpine Spring Water (Moultonborough, New Hampshire) Gallon

Crystal Geyser

Crystal Geyser Alpine Spring Water (Moultonborough, New Hampshire) Gallon

84

Side-by-side comparison

Kirkland SignatureCrystal Geyser
Purity score63/10084/100
Product comparedKirkland Signature Purified Water Plastic BottleCrystal Geyser Alpine Spring Water (Moultonborough, New Hampshire) Gallon
TypeStillStill
Water sourceMunicipal SupplySpring
PackagingPlasticPlastic
Microplastics riskHighHigh
Lab testedYesYes
PFAS testedYesNo
Contaminants flagged10
pH5.95.7
TDS (minerals)—19 ppm
Fluoride0 mg/L—

Score breakdown

FactorKirkland SignatureCrystal Geyser
Lab report indexed45/4545/45
Contaminants17/5047/50
Water source15/2525/25
Mineral preservation17/1717/17
Packaging material2/222/22
Cap material7/77/7
PFAS testing5/50/5

Each brand is represented by its most popular product. See all products from Kirkland Signature and Crystal Geyser.

Frequently asked questions

Which is better, Kirkland Signature or Crystal Geyser?

Crystal Geyser is the healthier choice, scoring 84/100 versus 63/100 for Kirkland Signature. The biggest differences are contaminants and water source.

Is Kirkland Signature or Crystal Geyser better for avoiding microplastics?

Kirkland Signature (plastic) has a high microplastics risk and Crystal Geyser (plastic) has a high risk, based on packaging material.

Which has more minerals, Kirkland Signature or Crystal Geyser?

Total dissolved solids (TDS) is not reported for both products, so check each product page for its mineral list.

More comparisons