Kirkland Signature vs Acqua Panna: which water is healthier?

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

Acqua Panna is the healthier choice, scoring 68/100 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
Acqua Panna Spring Water Glass Bottle

Acqua Panna

Acqua Panna Spring Water Glass Bottle

68

Side-by-side comparison

Kirkland SignatureAcqua Panna
Purity score63/10068/100
Product comparedKirkland Signature Purified Water Plastic BottleAcqua Panna Spring Water Glass Bottle
TypeStillStill
Water sourceMunicipal SupplySpring
PackagingPlasticGlass
Microplastics riskHighLow
Lab testedYesYes
PFAS testedYesYes
Contaminants flagged15
pH5.97.66
TDS (minerals)—100 ppm
Fluoride0 mg/L0 mg/L

Score breakdown

FactorKirkland SignatureAcqua Panna
Lab report indexed45/4545/45
Contaminants17/502/50
Water source15/2525/25
Mineral preservation17/1717/17
Packaging material2/2222/22
Cap material7/70/7
PFAS testing5/55/5

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

Frequently asked questions

Which is better, Kirkland Signature or Acqua Panna?

Acqua Panna is the healthier choice, scoring 68/100 versus 63/100 for Kirkland Signature. The biggest differences are packaging material and water source.

Is Kirkland Signature or Acqua Panna better for avoiding microplastics?

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

Which has more minerals, Kirkland Signature or Acqua Panna?

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

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