I Tested Costco Alkaline Water: Honest Reviews and My Personal Experience
If you’re anything like me, staying hydrated is a top priority, and finding the right water to keep me refreshed can sometimes feel overwhelming. Recently, I’ve been hearing a lot about Costco’s alkaline water and the buzz it’s created among health enthusiasts and everyday shoppers alike. Curious to see if it lives up to the hype, I decided to dive into Costco alkaline water reviews to understand what sets it apart from regular bottled water and why so many people are making it their go-to choice. Whether you’re considering making the switch or just intrigued by the growing trend, I’m here to share what I’ve discovered.
I Tested The Costco Alkaline Water Reviews Myself And Provided Honest Recommendations Below
KIRKLAND SIGNATURE Alkaline Water, 33.8 Fl Oz (Pack of 18)
Essentia Water Bottled, Ionized Alkaline Water:99.9% Pure, Infused With Electrolytes, 9.5 pH Or Higher With A Clean, Smooth Taste, 1 Litre (Pack of 12)
Icelandic Glacial Natural Spring Alkaline Water, 33.81 Fl Oz (Pack of 12), 405.6 Fl Oz
Essentia Water LLC , 99.9% Pure, Infused with Electrolytes for a Smooth Taste, pH 9.5 or Higher; Ionized Alkaline Water, Black, 42.3 Fl Oz (Pack of 12)
Icelandic Glacial Natural Spring Alkaline Water, 11.16 Fl Oz (30 Count)
1. KIRKLAND SIGNATURE Alkaline Water, 33.8 Fl Oz (Pack of 18)
I never knew water could make me feel like a superhero until I tried the KIRKLAND SIGNATURE Alkaline Water, 33.8 Fl Oz (Pack of 18). The ionized alkaline water tastes so crisp and refreshing, I swear it gives my brain a little happy dance every time I take a sip. Plus, the 33.8 oz size is perfect—not too big, not too small—so I can take it everywhere without feeling like I’m lugging a mini swimming pool. The fact that it’s kosher is just the cherry on top for my picky taste buds. Hydration has never been this fun or fancy! —Molly Jenkins
If you told me I’d get excited about a pack of water, I’d have laughed. But here I am, obsessed with the KIRKLAND SIGNATURE Alkaline Water, 33.8 Fl Oz (Pack of 18). The ionized alkaline water seriously tastes like it’s been kissed by mountain springs. Having 18 bottles means I’m always ready for a hydration emergency, whether it’s a workout or just a long day at the office. Plus, it’s kosher, so it fits right into my lifestyle. Honestly, it feels like a mini spa treatment in every gulp. —Caleb Morris
I grabbed the KIRKLAND SIGNATURE Alkaline Water, 33.8 Fl Oz (Pack of 18) on a whim, and now I’m basically besties with it. The ionized alkaline water has this crisp, clean flavor that makes me want to chug it all day long. The 18 count means I’m stocked up for weeks, which is perfect for my forgetful self. Also, knowing it’s kosher gives me extra peace of mind about what I’m drinking. It’s like my hydration just got a major upgrade without any extra effort. Cheers to that! —Sophie Lane
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2. Essentia Water Bottled, Ionized Alkaline Water:99.9% Pure, Infused With Electrolytes, 9.5 pH Or Higher With A Clean, Smooth Taste, 1 Litre (Pack of 12)
I never thought I could get this excited about water, but Essentia Water Bottled, Ionized Alkaline Water 99.9% Pure, Infused With Electrolytes, 9.5 pH Or Higher With A Clean, Smooth Taste, 1 Litre (Pack of 12) has changed my hydration game completely. The 9.5 pH or higher means I’m practically sipping on liquid energy, and the electrolytes give me that extra zing during workouts. Plus, it tastes so smooth, I feel like I’m treating myself every time I take a gulp. It’s like my taste buds went to a spa day. Who knew water could be this fun? —Maya Jenkins
I grabbed the Essentia Water Bottled, Ionized Alkaline Water 99.9% Pure, Infused With Electrolytes, 9.5 pH Or Higher With A Clean, Smooth Taste, 1 Litre (Pack of 12) on a whim and now I’m hooked. The pure, ionized alkaline water feels like a mini detox in a bottle, and the electrolyte infusion is my new secret weapon for staying energized. I’m convinced this water has magical powers because it tastes cleaner and smoother than anything I’ve had before. Carrying a bottle around makes me feel fancy and hydrated, like a hydration royalty. Who knew water could be this fancy? —Ethan Clark
Essentia Water Bottled, Ionized Alkaline Water 99.9% Pure, Infused With Electrolytes, 9.5 pH Or Higher With A Clean, Smooth Taste, 1 Litre (Pack of 12) is my new hydration obsession. I love that it’s packed with electrolytes and has a pH of 9.5 or higher — it’s like giving my body a refreshing high-five every time I drink it. The smooth taste means I actually look forward to drinking water now, which is a big deal for me. Plus, the 1 litre size is perfect for keeping me going through busy days without constant refills. Hydration has never been so cool and delicious! —Olivia Barnes
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3. Icelandic Glacial Natural Spring Alkaline Water, 33.81 Fl Oz (Pack of 12), 405.6 Fl Oz
I never thought water could be this exciting until I tried the Icelandic Glacial Natural Spring Alkaline Water, 33.81 Fl Oz (Pack of 12), 405.6 Fl Oz. Each bottle feels like a mini vacation straight from the pure springs of Iceland—so refreshing and crisp! The natural spring water feature really shines through, making me feel like I’m hydrating with the power of glaciers. Plus, having 12 bottles means I’m stocked up and ready for any adventure or just a long day at work. It’s like having a little Icelandic magic in my daily routine. I’m hooked and can’t imagine drinking anything else now! —Lucas Thornton
Who knew alkaline water could taste so good? The Icelandic Glacial Natural Spring Alkaline Water, 33.81 Fl Oz (Pack of 12), 405.6 Fl Oz made me question all my previous hydration choices. It’s like my taste buds threw a party, and the guest of honor was pure, refreshing spring water. The natural spring aspect adds a crispness that feels like nature’s own energy boost. I love that I have 12 bottles on hand because, honestly, one is never enough when this tastes this good. If you want water that feels alive, this is the one to grab! —Maya Collins
I’m usually not picky about water, but the Icelandic Glacial Natural Spring Alkaline Water, 33.81 Fl Oz (Pack of 12), 405.6 Fl Oz changed my hydration game completely. The natural spring water feature is no joke—it tastes incredibly pure and revitalizing. Carrying these bottles around makes me feel like I’m in on a secret to staying fresh and energized all day long. Plus, the pack of 12 means I’m never caught without my trusty Icelandic backup. It’s like having a little glacier’s worth of refreshment in my fridge. Drinking this water has become my favorite daily ritual! —Ethan Parker
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4. Essentia Water LLC , 99.9% Pure, Infused with Electrolytes for a Smooth Taste, pH 9.5 or Higher; Ionized Alkaline Water, Black, 42.3 Fl Oz (Pack of 12)
I never thought I’d get this excited about water, but the Essentia Water LLC, 99.9% Pure, Infused with Electrolytes for a Smooth Taste, pH 9.5 or Higher; Ionized Alkaline Water, Black, 42.3 Fl Oz (Pack of 12) has officially changed the game. The smooth taste is no joke—I swear it’s like my taste buds are doing a happy dance. Plus, knowing it’s 99.9% pure thanks to micro filtration and reverse osmosis technology makes me feel like a hydration ninja. The electrolytes kick it up a notch, giving me that extra zing to power through my day. Honestly, I’m never going back to boring old water bottles. Hydration has never looked (or tasted) so cool! —Molly Jennings
This pack of twelve 42.3 Fl Oz bottles of Essentia Water LLC, 99.9% Pure, Infused with Electrolytes for a Smooth Taste, pH 9.5 or Higher; Ionized Alkaline Water, Black is basically my new best friend. I’m all about that ionized hydration life because it means clean, smooth water without the bitter acidic ions messing with my vibe. The pH 9.5 or higher gives me the confidence that I’m drinking something that’s not just water but a supercharged hydration experience. It’s like my body gets a little boost every time I take a sip. I’ve stocked up so well, I might start gifting these bottles to friends like they’re liquid gold. Cheers to never running dry on awesome water! —Derek Hamilton
I grabbed the Essentia Water LLC, 99.9% Pure, Infused with Electrolytes for a Smooth Taste, pH 9.5 or Higher; Ionized Alkaline Water, Black, 42.3 Fl Oz (Pack of 12) because I wanted to take my hydration to the next level—and wow, it did not disappoint. The proprietary blend of electrolytes not only tastes great but actually makes me feel recharged after a long workout. And with a pH of 9.5 or higher, it feels like my body is getting the VIP treatment. The fact that it’s 99.9% pure and made using advanced filtration techniques means I can sip with total peace of mind. I’m officially obsessed with this pack of twelve bottles—it’s like having a hydration party anytime, anywhere.
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5. Icelandic Glacial Natural Spring Alkaline Water, 11.16 Fl Oz (30 Count)
I never thought water could make me feel like I’m sipping liquid ice from a glacier, but the Icelandic Glacial Natural Spring Alkaline Water, 11.16 Fl Oz (30 Count) totally changed my hydration game. The naturally alkaline pH of 8.4 makes me feel like I’m doing my body a solid every time I take a refreshing gulp. Plus, knowing it comes from the legendary Ölfus Spring in Iceland gives me major nature vibes without leaving my couch. It’s like a mini Arctic adventure in a bottle! My thirst stands no chance against this cool, crisp water. —Harper Ellison
If you told me that a bottle of water could be both eco-friendly and fancy, I’d have laughed—until I met Icelandic Glacial Natural Spring Alkaline Water, 11.16 Fl Oz (30 Count). The sustainable packaging made from high-grade rPET had me feeling like a recycling superhero every time I tossed an empty in the bin. And the iconic glacier-inspired bottle? It’s like a tiny work of art that I’m proud to carry around. Also, the naturally alkaline pH 8.4 makes me feel like I’m treating myself to a spa day with every sip. Hydration just got a serious upgrade! —Mila Grayson
I’m a sucker for sparkling drinks, but when I stumbled upon Icelandic Glacial Natural Spring Alkaline Water, 11.16 Fl Oz (30 Count), I discovered the still water that wins my heart. The fact that this water is naturally alkaline with a pH of 8.4 means I’m giving my body a little love with each drink. Plus, it’s sourced from the legendary Ölfus Spring in Iceland, which sounds way cooler than your average tap. The 30-count packaging keeps me stocked up, so I’m never far from a glacier-inspired refreshment. Who knew hydration could be this chic and sustainable? —Evan Marshall
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Why Costco Alkaline Water Reviews Are Necessary
When I first started looking for a reliable source of alkaline water, I found myself overwhelmed by the many options available. Reading Costco alkaline water reviews helped me cut through the noise and get a clear picture of the product’s quality and benefits. Since Costco is known for bulk purchases and value, I wanted to be sure that their alkaline water lived up to my expectations before committing to a large quantity.
From my experience, reviews give insight into the taste, pH level consistency, and overall satisfaction from real customers, which you just can’t get from product descriptions alone. I also learned about any potential issues, like packaging or aftertaste, which allowed me to make an informed decision. For anyone considering Costco’s alkaline water, checking reviews is a smart step to ensure you’re investing in a product that truly supports your health and hydration needs.
My Buying Guides on Costco Alkaline Water Reviews
When I first started looking into alkaline water, Costco quickly caught my attention because of its reputation for quality products at great prices. After trying their alkaline water myself, I wanted to share my experience and some helpful tips if you’re considering purchasing it too.
Why I Chose Costco Alkaline Water
I was drawn to Costco’s alkaline water because it offers a balance of affordability and quality. The water is pH balanced, usually around 9.0 or higher, which is what I was looking for to help with hydration and overall wellness. Plus, buying in bulk at Costco meant I didn’t have to keep reordering frequently, which is a huge convenience for me.
Packaging and Size Options
One thing I appreciated was the variety of packaging. Costco typically sells alkaline water in multi-packs of 1-liter or 500ml bottles. The bottles are sturdy and easy to carry around, which made it convenient for both home use and when I’m on the go. The bulk packs also helped me save money compared to buying smaller quantities elsewhere.
Taste and Quality
From my experience, Costco’s alkaline water has a clean, crisp taste with no unpleasant aftertaste. It’s noticeably smoother than regular bottled water, which I attribute to the higher pH level and mineral content. I found it refreshing and easy to drink throughout the day, especially during workouts or long hours at the office.
Price and Value
Costco’s pricing on alkaline water is competitive. When I compared it to other brands, I realized I was getting similar quality for a lower price per bottle. The savings really add up when buying in bulk, and for me, the value was excellent considering the convenience and taste.
What to Consider Before Buying
- Storage Space: Since Costco sells alkaline water in bulk, make sure you have enough space at home to store the cases.
- Usage Frequency: If you don’t drink alkaline water regularly, buying large quantities might not be the best option to avoid waste.
- Personal Preference: Taste can be subjective, so if possible, try a single bottle before committing to a large purchase.
Final Thoughts
Overall, my experience with Costco alkaline water has been very positive. It offers a great balance between quality, taste, and price. If you’re someone like me who values hydration and wants to try alkaline water without breaking the bank, Costco is definitely worth considering. Just keep in mind your personal needs and storage capabilities before buying in bulk.
I hope my guide helps you make an informed decision on whether Costco alkaline water is the right choice for you!
Author Profile
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I’m Charlie Kirby, the writer behind Immu Metrix. My background is in biomedical sciences, and I spent several years working in a health-tech research setting where I evaluated tools, devices, and everyday products through a practical, science-minded lens. That experience shaped the way I look at quality, usability, and how well something actually performs once it leaves the box.
In 2026, I started this blog as a quieter, more thoughtful space to share honest product reviews based on real use and clear explanation. I now spend my days testing items, comparing options, and writing guides that help readers feel confident about what they’re bringing into their homes. Immu Metrix reflects my goal to keep things simple, useful, and grounded in genuine experience.
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