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★★★★★ 5
Add the right amount
Flavor Name: Unflavored, Size: 8 Ounce (Pack of 1)
Previous reviewers are adding too much of Concentrace to filtered water. Add only about 20 drops in a gallon of Zero Water filtered water.
This will bring the TDS (total dissolved solid) from 0, after using the Zero Water pitcher, which is basically distilled water, to about 110 TDS an ideal level.
This doesn't mean that this will replace all of your daily mineral needs because water alone is not designed to do this. You will get the rest of the needed minerals from food and any supplements that you may take.
You may also want to consider using a LifeStraw pitcher after filtering with the Zero Water pitcher. Because the Zero Water will remove all dissolved solid including some bacteria, PFAS, and microplastics. But LifeStraw will remove most of the microplastics, DBPs, VOCs, PFAS and pharmaceuticals.
One long filter in the Life Straw pitcher will last over a year since you're already using filtered water, but the round filter would need more frequent replacement - it has 2 parts. You must use both filters in the Life Straw pitcher, even after using the Zero Water pitcher.
There's a new documentary special on Netflix (May/'26) on microplastics and its dangers that everyone should see. Extremely informative.
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Reviewed in the United States on May 5, 2026
