Core Hydration vs Eternal Water: which water is healthier?

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

Eternal Water is the healthier choice, scoring 85/100 versus 50/100 for Core Hydration. The biggest differences are contaminants and water source.

Core Hydration Plastic Bottle

Core Hydration

Core Hydration Plastic Bottle

50
Eternal Water Gallon

Eternal Water

Eternal Water Gallon

85

Side-by-side comparison

Core HydrationEternal Water
Purity score50/10085/100
Product comparedCore Hydration Plastic BottleEternal Water Gallon
TypeStillStill
Water sourceMunicipal SupplyMountain Spring
PackagingPlasticPlastic
Microplastics riskHighHigh
Lab testedYesYes
PFAS testedNoYes
Contaminants flagged22
pH7.48.1
TDS (minerals)78 ppm110 ppm
Fluoride0 mg/L—

Score breakdown

FactorCore HydrationEternal Water
Lab report indexed45/4545/45
Contaminants0/5044/50
Water source15/2525/25
Mineral preservation17/1717/17
Packaging material2/222/22
Cap material7/77/7
PFAS testing0/55/5

Each brand is represented by its most popular product. See all products from Core Hydration and Eternal Water.

Frequently asked questions

Which is better, Core Hydration or Eternal Water?

Eternal Water is the healthier choice, scoring 85/100 versus 50/100 for Core Hydration. The biggest differences are contaminants and water source.

Is Core Hydration or Eternal Water better for avoiding microplastics?

Core Hydration (plastic) has a high microplastics risk and Eternal Water (plastic) has a high risk, based on packaging material.

Which has more minerals, Core Hydration or Eternal Water?

Eternal Water has more dissolved minerals (110 ppm TDS vs 78 ppm).

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