Kirkland Signature vs Voss: which water is healthier?

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

Voss is the healthier choice, scoring 74/100 versus 63/100 for Kirkland Signature. The biggest differences are packaging material and water source.

Kirkland Signature Purified Water Plastic Bottle

Kirkland Signature

Kirkland Signature Purified Water Plastic Bottle

63
Voss Still Water (Norway) Glass Bottle

Voss

Voss Still Water (Norway) Glass Bottle

74

Side-by-side comparison

Kirkland SignatureVoss
Purity score63/10074/100
Product comparedKirkland Signature Purified Water Plastic BottleVoss Still Water (Norway) Glass Bottle
TypeStillStill
Water sourceMunicipal SupplyAquifer
PackagingPlasticGlass
Microplastics riskHighLow
Lab testedYesYes
PFAS testedYesNo
Contaminants flagged12
pH5.96.2
TDS (minerals)—38 ppm
Fluoride0 mg/L0.1 mg/L

Score breakdown

FactorKirkland SignatureVoss
Lab report indexed45/4545/45
Contaminants17/5011/50
Water source15/2525/25
Mineral preservation17/1717/17
Packaging material2/2222/22
Cap material7/77/7
PFAS testing5/50/5

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

Frequently asked questions

Which is better, Kirkland Signature or Voss?

Voss is the healthier choice, scoring 74/100 versus 63/100 for Kirkland Signature. The biggest differences are packaging material and water source.

Is Kirkland Signature or Voss better for avoiding microplastics?

Kirkland Signature (plastic) has a high microplastics risk and Voss (glass) has a low risk, based on packaging material.

Which has more minerals, Kirkland Signature or Voss?

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

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