Core Hydration vs Mountain Valley: which water is healthier?

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

Mountain Valley is the healthier choice, scoring 68/100 versus 50/100 for Core Hydration. The biggest differences are packaging material and water source.

Core Hydration Plastic Bottle

Core Hydration

Core Hydration Plastic Bottle

50
Mountain Valley Spring Water Glass Bottle

Mountain Valley

Mountain Valley Spring Water Glass Bottle

68

Side-by-side comparison

Core HydrationMountain Valley
Purity score50/10068/100
Product comparedCore Hydration Plastic BottleMountain Valley Spring Water Glass Bottle
TypeStillStill
Water sourceMunicipal SupplyMountain Spring
PackagingPlasticGlass
Microplastics riskHighLow
Lab testedYesYes
PFAS testedNoYes
Contaminants flagged25
pH7.48.2
TDS (minerals)78 ppm202 ppm
Fluoride0 mg/L—

Score breakdown

FactorCore HydrationMountain Valley
Lab report indexed45/4545/45
Contaminants0/502/50
Water source15/2525/25
Mineral preservation17/1717/17
Packaging material2/2222/22
Cap material7/70/7
PFAS testing0/55/5

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

Frequently asked questions

Which is better, Core Hydration or Mountain Valley?

Mountain Valley is the healthier choice, scoring 68/100 versus 50/100 for Core Hydration. The biggest differences are packaging material and water source.

Is Core Hydration or Mountain Valley better for avoiding microplastics?

Core Hydration (plastic) has a high microplastics risk and Mountain Valley (glass) has a low risk, based on packaging material.

Which has more minerals, Core Hydration or Mountain Valley?

Mountain Valley has more dissolved minerals (202 ppm TDS vs 78 ppm).

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