Last Updated: April 30, 2020

This core water review is necessary because this brand is now more popular than ever.

Core Water (also called CORE Hydration) is yet another “healthy water brand” on the market today. The marketing promotes it as being an “ultra-purified” type of water that has a “pure crisp taste”. Mixed with just the right amount of minerals and electrolytes set to the pH of 7.4.

They chose to make the pH 7.4 because this is the neutral pH alkaline level for your body. It is also the set point that the human body always tries to achieve when it becomes unbalanced.

The body being too acidic or too alkaline can be very bad for you and it’s always best to have a body that is pH neutral. CORE water claims that it will help you achieve this ph neutrality while also being very hydrating.

This core water review will go through all the claims and let you know if this product is a scam or legit.

What is CORE Hydration Water?

CORE hydration is “ultra-purified” water that is full of minerals, electrolytes and has a pH of 7.4. This pH level tries to mimic the optimum pH level of the human body. The idea is that being 7.4 means it will better work in harmony with your body.

CORE Hydration Water Ingredients

  • Reverse osmosis water.
  • Calcium chloride.
  • Potassium bicarbonate (from mineral and electrolyte sources).
  • Magnesium chloride.

It is important to note that magnesium, potassium and calcium are minerals typically present in alkaline water. In fact they are essential minerals that will typically appear in most water sources. These minerals also happen to be alkaline.

Although some other alkaline water brands do not include “chloride” minerals, chloride is not harmful to health.

Electrolyte based minerals are particularly a good feature of CORE. Especially for people who are very physically active and sweat a lot.

Core Water Benefits

Green Plus ArrowIt is free from fluoride.

Green Plus ArrowBy far one of the best things about CORE hydration is its purity. Its 7-stage filtration is incredibly thorough and goes further than almost all other alkaline water brands.

Green Plus ArrowThe 7 stages of filtration include things like UV (ultraviolet), reverse osmosis and ozonation.

Green Plus ArrowComes with bottles that are BPA-free. This is just as well because you can use the cap as a cup to drink the water from.

Green Plus ArrowThe bottles actually look good and look like a premium product.

Green Plus ArrowComes with a good blend of electrolytes and minerals that include calcium, potassium and magnesium.

Green Plus ArrowCORE’s water quality report shows that the TDS (total dissolved solids) is 82. But note that 82 is within the acceptable range as regular tap water is well over 400.

Green Plus ArrowThere are lots of different variations of bottle designs and they also feature a wide-mouth sports cap.

CORE Water vs Fiji

 CORE WaterFiji Water
FILTER METHODS7 stage proprietary purification process that includes reverse osmosis, micron and carbon filtration, ozonation, and ultra-violet.UV treated drinking water.
SOURCE OF WATERNot specified.Tropical rain slowly filters through volcanic rock.
WHAT HAS BEEN ADDED?Nutrient-enhanced water with electrolytes.Nothing added, only contains natural minerals.
pH LEVEL 7.47.7

Is CORE Better The Regular Water?

The short answer is no.

Drinking regular water will provide you with all the hydration and most of the nutrients that you need. If you want water that is particularly mineral-rich then you can choose natural spring water like Fiji (which is also much cheaper).

Natural spring water is full of minerals like potassium and magnesium, which can also function as electrolytes. CORE does not have these nutrients naturally and therefore needs to synthetically add it back in to the treated water.

However, be prepared to see more and more “better than water” products on the market. US drinks manufacturers are bending over backwards to present differentiated products to keep revenues up.

CORE is just another product that comes in the vein of similar products like the ever successful “Smartwater”.  Smartwater is the so called “better than nature” water that is full of added electrolytes. Meanwhile other brands like Essentia has some of the highest alkaline ph levels and claim to have “perfected hydration”.


Yes and no.

No it is NOT a SCAM?

This is in the sense that the product actually contains everything it says it does. There are lots of tests on YouTube verifying that it is in fact 7.4 pH, the TDS is around where they say it is and it is full of the electrolytes that they promise.

Yes it is a SCAM?

Only in the sense that some of the claims are too far reaching and slightly over the top.

For instance, the human body does NOT need alkaline water to maintain it’s neutral pH state. The body will always strive to reach 7.4 pH all by itself and drinking CORE will have very little impact on this (if any at all).

Similarly, electrolytes have negligible benefits for the vast majority of people.

Simply drinking clean filtered water will provide you with pretty much all the minerals and hydration that you need.

CORE Water Review: Is It WORTH It?

Yes but only in the sense that it’s a good quality product that will hydrate you.

Mr Water Geek Thinking

However, as far as I can tell, all the added minerals and electrolytes are pretty much there for taste and not so much for health.

Another thing to note is that although CORE describe having a perfect pH of 7.4,  this is with an asterisk.

When you read the small print, the label confirms that this number is actually an approximation.

HINT Fruit

It is true that a diet that is high in acid is not great for the body. High acid foods include things like sugar, grains, sodas,processed foods, certain dairy products etc. And yes a diet high in alkaline food products (e.g. tofu, fruits, soybeans, vegetables, some seeds, nuts, legumes etc) are much better for you.

But drinking alkaline water does *NOT* have as big an impact on your health as focusing on a alkaline rich healthy diet.

The bottom line is that drinking CORE hydration or any other type of alkaline water will NEVER repair a bad diet or lifestyle.

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I'm a health author, science enthusiast and 100% certified geek. My passion is to help you take control of your health and well-being by understanding the true importance of good quality water and healthy hydration.


  1. This brand Core, has helped me. A LOT! I get fever blisters from eating / drinking things that have the preservative citric acid or ascorbic acid. As much as I try to restrict the diet, there are so many things that have those as a preservative, my body has a hard time balancing. Within a day of drinking just one bottle of Core. The blisters have reduced to almost nothing. And it is not expensive.

  2. My daughter has been drinking core water for the last few months and in addition to being really hydrated(she drinks three bottles a day) she has lost thirty pounds in the last four months. She loves it!!

    • Hi Michael

      I’m not a doctor or nutritionist but magnesium chloride can be given as medication so it should be safe for human consumption.

      The generic advice seems to be that you should take it with food if it upsets your stomach or causes diarrhea.

      Stay hydrated,

  3. You’re also aware look of all of the *extras that are included in our wonderful tap water and bottled tap water, yes? I’ll go ahead and splurge the couple dollars on something a bit less poisonous. 😘

  4. I bought a bottle of core water today, took a drink and realized there was no protective seal, just flipped the top and took a drink shortly my mouth went very dry and felt nauseous, should I be concerned

    • Hi Maggie

      I don’t think so but you should contact the store you purchased it from and complain.

      If, however, you are really concerned that your health is effected in anyway then speak to a healthcare professional immediately.

      Best Regards,

  5. I’ve been drinking Core for about a year now and I do have some factual analysis.
    I’m a competitive swimmer.
    Now, Versus straight RO water or some of the 16.9 oz bottles of “Other” when I am in dire need of something because my thirst will not quench; this hits the tab.
    I reckon it is because of the Potassium or magnesium replenishment but who knows.

    What I do know for sure, as you’ve mentioned; for the athlete it does do what is says. Now for average sit down Joe; I wouldn’t bother unless you simply want good tasting water. Which is exactly what this is!

    Last: I’ve spent 2.5 years studying water directly because I am a brewer and wanted to fully understand certain minerals in water. The Maker of CORE certainly knows what they are doing. if Magnesium is good for yeast (As the body has some too) then it most certainly is for humans too.

  6. I have Colitis in my large intestines. After being diagnosed with this disease I could no longer drink just any water drinking the core water is good for me because it will not cause me diarrhea like other name brands would do. To the lady that mouth went dry after she drink the core water there is a protective seal on there you can hear it pop when you open the bottle you can tell I think someone had just open your bottle but anyway I give core water all the times up👍👍👍👍👍👍

  7. Does a Water filter remove all the harmful ingredients from tap water? Is this true? I read this information in this blog. Kindly share your experience with me.

  8. I am not a usual water drinker. I hate water. I’ve struggled my entire life to drink fluids period let alone water. I hate tap water and almost every water ive tried tastes terrible. I have a hard time staying hydrated without drinking body armor or gatorade, which contain a lot of sugar. I recently tried this water because of its sippy cup spout and I am hooked. This water is very refreshing. It doesnt taste like minerals. Its so good. The spout makes it very easy for me to chug easily as regular bottles I have a hard time drinking fast enough so I never finish a bottle. I highly recommend this water to nonwater drinkers.


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