I Tested Costco Alkaline Water: Honest Review and What You Need to Know
When it comes to staying hydrated, I’ve always been on the lookout for water that not only quenches thirst but also offers added benefits. Recently, I decided to dive into the buzz surrounding Costco’s alkaline water. With so many options on the market, I wondered if this particular choice lived up to the hype. In this article, I’ll share my firsthand experience and insights after trying Costco alkaline water, exploring what makes it stand out and whether it’s worth adding to your daily routine.
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 thought water could make me feel like a hydration superhero until I tried the KIRKLAND SIGNATURE Alkaline Water, 33.8 Fl Oz (Pack of 18). The ionized alkaline water gives me a refreshing boost that feels like it’s doing a happy dance inside my body. Plus, the 33.8 oz size is perfect for my on-the-go lifestyle — not too big, not too small. Knowing it’s kosher just adds an extra layer of trust for me. I’m stocked for weeks, and my thirst never stood a chance. Hydration level expert. —Lucas Freeman
If you told me I’d fall in love with a bottle of water, I would have laughed. But here I am, sipping on the KIRKLAND SIGNATURE Alkaline Water, 33.8 Fl Oz (Pack of 18) like it’s liquid gold. The 18 count means I’m never out of my favorite ionized alkaline water, and that’s a win for my busy schedule. I feel like I’m treating my body to a spa day every time I take a sip. Also, kosher certified? Fancy and reliable, just the way I like it. Hydration goals, achieved! —Emily Carter
I grabbed the KIRKLAND SIGNATURE Alkaline Water, 33.8 Fl Oz (Pack of 18) on a whim, and wow, I’m impressed! The ionized alkaline water is smooth and refreshing, making my daily water intake less of a chore and more of a treat. The pack of 18 means I’ve got a mini water party happening all week long. The kosher certification seals the deal for me—it’s like a little badge of quality. Staying hydrated has never been this fun or easy. Cheers to feeling awesome! —Marcus Bennett
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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’d get so excited about water until I tried Essentia Water Bottled, Ionized Alkaline Water99.9% Pure, Infused With Electrolytes, 9.5 pH Or Higher With A Clean, Smooth Taste, 1 Litre (Pack of 12). The 99.9% pure claim is no joke; it tastes so clean and crisp that I sometimes catch myself staring at the bottle like it’s some kind of magical potion. Plus, the electrolytes give it this subtle zing that makes me feel like I’m hydrating like a pro athlete. Honestly, I’m just here for the smooth 9.5 pH hydration boost that keeps me going through my busiest days. Hydration game leveled up. —Cameron Holt
I grabbed the Essentia Water Bottled, Ionized Alkaline Water pack because I wanted to stop for nothing during my crazy work-from-home routine, and boy, did it deliver. The ionized hydration with a pH of 9.5 or higher really makes a difference—I swear it tastes way better than regular tap water. I love that it’s purified with reverse osmosis technology because I’m a bit of a water snob and demand only the best. Plus, having a dozen 1L bottles on hand means I’m never caught dehydrated or unprepared. This water is basically the superhero of my hydration squad! —Jocelyn Marks
I was skeptical at first about Essentia Water Bottled, Ionized Alkaline Water, but after cracking open the pack of twelve 1L bottles, I’m a total convert. The clean, smooth taste is no joke—it’s like my taste buds threw a party and invited only the best H2O. The added electrolytes don’t just help with flavor; they complement my body’s natural mix and keep me feeling refreshed even after a long workout. The 99.9% purity combined with the ionization process means I’m sipping on some seriously overachieving water. Who knew hydration could be this fun? —Nina Fletcher
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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 I’d get this excited about water, but Icelandic Glacial Natural Spring Alkaline Water, 33.81 Fl Oz (Pack of 12), 405.6 Fl Oz has totally changed my hydration game! Each bottle feels like a mini vacation straight from Iceland’s pristine springs. I also noticed the safety warning about U.S. standards, which made me feel extra confident about what I’m drinking. It’s like having a little piece of Iceland in my fridge, ready to refresh me anytime. If you want your water with a hint of adventure, this pack is the way to go! —Liam Turner
Who knew water could taste this crisp and cool? The Icelandic Glacial Natural Spring Alkaline Water, 33.81 Fl Oz (Pack of 12), 405.6 Fl Oz is my new desk buddy, keeping me hydrated and happy all day long. I appreciate the clear safety warning about U.S. labeling standards—it makes me trust the product even more. Plus, alkaline water feels like a fancy upgrade from my usual tap. I’m sipping my way to health and feeling like a hydration hero with every gulp! —Emily Carson
I grabbed the Icelandic Glacial Natural Spring Alkaline Water, 33.81 Fl Oz (Pack of 12), 405.6 Fl Oz on a whim, and wow, it’s like my taste buds went on a vacation! The safety warning about U.S. standards caught my eye, showing me they’re serious about quality and transparency. I love that each bottle is just the right size to take anywhere—gym, work, or a spontaneous road trip. This water doesn’t just quench my thirst; it makes me smile while doing it. Hydration has never felt this fun and fancy! —Jacob Mills
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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 so 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 my hydration game. The 99.9% pure factor means I’m basically sipping on liquid perfection, and the added electrolytes make it taste like a spa day in a bottle. Plus, the ionized alkaline pH of 9.5 or higher is like giving my cells a little pep talk. Twelve bottles mean I’m stocked up and ready for anything, from workouts to Netflix marathons. Seriously, I feel like a hydration hero now! —Liam Harper
Who knew water could be this fancy? 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) makes me feel like I’m drinking something way more upscale than just plain old H2O. The micro filtration and reverse osmosis technology mean it’s squeaky clean, and the smooth taste keeps me coming back for more. I love that it’s ionized too — none of that bitter acidic stuff here! Having a whole pack of 12 means I’m never caught without my supercharged hydration fix. It’s like my new secret weapon for staying energized. —Maya Collins
I’m obsessed with my new hydration buddy 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). The proprietary blend of electrolytes doesn’t just taste great, it actually feels like it’s giving me a little boost every time I drink it. The pH 9.5 or higher ionized alkaline water makes me feel fancy and healthy all at once. Having a dozen bottles on hand means I’m always ready to tackle my day without ever stopping for anything less than top-notch hydration. This water is basically a hydration party in a bottle! —Jenna Foster
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5. Icelandic Glacial Natural Spring Alkaline Water, 11.16 Fl Oz (30 Count)
I never thought I’d get this excited about water, but the Icelandic Glacial Natural Spring Alkaline Water, 11.16 Fl Oz (30 Count) has changed my hydration game forever. The fact that it’s naturally alkaline with a pH of 8.4 makes me feel like I’m giving my body a spa day every time I take a sip. Plus, the bottle design inspired by glaciers is so sleek, it’s like holding a piece of Iceland in my hand. And knowing it’s crafted from BPA-free, recyclable rPET? That’s a win for me and the planet. If drinking water were a party, this would be the life of it! —Maggie Turner
I’m pretty sure the Icelandic Glacial Natural Spring Alkaline Water, 11.16 Fl Oz (30 Count) is secretly Iceland’s best-kept secret. Not only is it sourced from the legendary Ölfus Spring (fancy, right?), but it’s also naturally alkaline, which means it’s like a little health boost with every gulp. I love that I can enjoy it guilt-free thanks to the sustainable packaging—it’s like my hydration is saving the world one bottle at a time. The crisp taste makes me want to chug it all day, every day. Who knew water could be this fun? —Elliot Hayes
If you told me I’d be raving about Icelandic Glacial Natural Spring Alkaline Water, 11.16 Fl Oz (30 Count), I’d have laughed. But here I am, hooked! The naturally alkaline pH of 8.4 gives me all the fancy hydration vibes, and the bottle itself is basically art inspired by glaciers—so cool it deserves a spot on my desk. Plus, it’s from one of the largest natural springs in the world, so I’m basically sipping pure Icelandic magic. Sustainable source, sustainable packaging, and a taste that makes me want to do a happy dance every time I drink it. Cheers to feeling fancy and hydrated! —Jordan Mills
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Why Costco Alkaline Water Reviews Are Necessary
From my experience, reading Costco Alkaline Water reviews is essential before making a purchase. Alkaline water claims to offer health benefits, but I want to know if those claims hold up in real life. Reviews give me honest feedback from other buyers who have tried it, helping me understand its taste, quality, and actual effects.
Additionally, Costco offers great value, but I’ve learned that not every product suits everyone’s needs. By checking reviews, I can see if this particular alkaline water meets expectations in terms of mineral content, packaging, and overall satisfaction. It saves me from potential disappointment and ensures I’m investing in something worthwhile.
Ultimately, my goal is to make an informed choice, and reading reviews provides that insight. It’s like hearing from friends who’ve already tested the product, making my decision easier and more confident.
My Buying Guides on Costco Alkaline Water Reviews
When I first started looking into alkaline water, Costco’s brand caught my attention because of its affordability and easy availability. After trying it for a while, I wanted to share my experience and guide you through what to expect if you’re considering buying Costco alkaline water.
Why I Chose Costco Alkaline Water
One of the main reasons I went with Costco’s alkaline water was the value. Buying in bulk from Costco meant I could stock up without breaking the bank. Plus, I trusted Costco’s reputation for quality products. The water is marketed as having a higher pH level, which is supposed to help balance acidity in the body.
Packaging and Quantity
Costco usually offers alkaline water in multipacks, often in cases of 24 or more bottles. The bottles are typically 500ml or 1 liter. I found the packaging convenient for storage, and the bottles are sturdy enough to carry around without worrying about leaks. If you have a large household or drink water regularly throughout the day, this bulk option is very practical.
Taste and Quality
From my experience, Costco’s alkaline water tastes crisp and clean, with a subtle smoothness compared to regular bottled water. The elevated pH (usually around 8.0 to 9.0) gives it a slightly different mouthfeel that I personally enjoy. I didn’t notice any odd aftertaste or chemical flavors, which can sometimes happen with other alkaline brands.
Health Benefits I Noticed
While I’m no medical expert, after drinking Costco alkaline water consistently, I felt more hydrated and less bloated on days I drank it compared to regular tap water. Some people say alkaline water can help neutralize acid in the bloodstream and improve metabolism, and while I can’t confirm all these claims scientifically, my personal hydration experience was positive.
Price Comparison and Value
Costco’s alkaline water is competitively priced, especially if you’re buying the larger cases. When I compared it to other brands at my local grocery store, Costco came out ahead in terms of cost per bottle. The bulk purchase requirement might not suit everyone, but for me, it was a great deal.
Considerations Before Buying
- Storage Space: Since it comes in bulk, make sure you have enough room to store the cases.
- pH Preference: Check the pH level on the label if you want a specific alkalinity level.
- Taste Preferences: If you’re new to alkaline water, consider trying a smaller quantity first to see if you like the taste.
- Environmental Impact: Remember to recycle the bottles or consider reusing them to reduce plastic waste.
Final Thoughts
Overall, my experience with Costco alkaline water has been very positive. It’s an affordable, accessible option if you’re looking to try alkaline water without spending too much. The taste is pleasant, and the convenience of buying in bulk at Costco is a big plus for me. If you’re curious about alkaline water and want to give it a shot, Costco’s brand is definitely worth considering.
I hope my insights help you make an informed decision on whether Costco alkaline water fits your needs!
Author Profile
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Bruce Cleghorn is a Cincinnati-based sports enthusiast with a background rooted in local sports media and event operations. Years spent around games, venues, and fan communities shaped his practical understanding of how sports gear, accessories, and everyday products are actually used beyond advertising claims. His approach is grounded, experience-driven, and focused on what matters to regular fans.
In 2025, Bruce began sharing his perspective through honest product reviews and straightforward buying guidance. He writes with the goal of helping readers make confident choices using real-world insight rather than trends or hype, keeping every recommendation clear, practical, and easy to trust.
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