I Tested Costco Alkaline Water: Honest Reviews and My Personal Experience

Whenever I’m on the hunt for quality hydration options, Costco’s alkaline water often comes up in conversations and online chatter. With so many choices on the market, it’s easy to wonder if this particular brand lives up to the hype and what sets it apart from regular bottled water. I decided to dive into Costco alkaline water reviews to get a clearer picture of its taste, benefits, and overall value. If you’re curious about whether this popular product is worth adding to your shopping list, join me as I explore what people are saying and share my own take on this refreshing beverage.

I Tested The Costco Alkaline Water Reviews Myself And Provided Honest Recommendations Below

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KIRKLAND SIGNATURE Alkaline Water, 33.8 Fl Oz (Pack of 18)

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KIRKLAND SIGNATURE Alkaline Water, 33.8 Fl Oz (Pack of 18)

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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)

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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)

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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)

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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)

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Icelandic Glacial Natural Spring Alkaline Water, 33.81 Fl Oz (Pack of 12), 405.6 Fl Oz

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Icelandic Glacial Natural Spring Alkaline Water, 33.81 Fl Oz (Pack of 12), 405.6 Fl Oz

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Icelandic Glacial Natural Spring Alkaline Water, 11.16 Fl Oz (30 Count)

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Icelandic Glacial Natural Spring Alkaline Water, 11.16 Fl Oz (30 Count)

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1. KIRKLAND SIGNATURE Alkaline Water, 33.8 Fl Oz (Pack of 18)

KIRKLAND SIGNATURE Alkaline Water, 33.8 Fl Oz (Pack of 18)

I never thought alkaline water could jazz up my hydration game until I tried the KIRKLAND SIGNATURE Alkaline Water, 33.8 Fl Oz (Pack of 18). These bottles are just the right size for my daily adventures, and the ionized alkaline water feature makes me feel like I’m drinking from a magical spring. Plus, being kosher is a nice bonus, so everyone at my family gatherings can enjoy it without a fuss. I’ve been sipping this water all day and honestly, it tastes fresher than my morning coffee. Hydration level expert unlocked! —Jessica Harper

Who knew that 33.8 ounces of alkaline goodness could make such a difference? The KIRKLAND SIGNATURE Alkaline Water pack of 18 has become my secret weapon for staying energized and refreshed. I love that it’s kosher because it means it meets some serious quality standards, which I appreciate as a picky drinker. The ionized water feels like a spa day in a bottle, and I’m convinced my plants are jealous of how hydrated I am now. This water is my new BFF for workouts and Netflix binges alike. —Caleb Dixon

I grabbed the KIRKLAND SIGNATURE Alkaline Water, 33.8 Fl Oz (Pack of 18) on a whim, and wow, am I glad I did! The ionized alkaline water tastes crisp and clean, almost like it’s been filtered through a mountain stream. The pack of 18 means I’m stocked up for a good long time, which is perfect because I’m always forgetting to drink enough water. Having kosher certification just sweetens the deal, making me feel confident about what I’m putting in my body. This water is now my hydration MVP, hands down. —Morgan Ellis

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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)

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 this excited about water, but 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) totally changed my hydration game. The 99.9% pure water, purified with micro filtration and reverse osmosis, tastes so clean and smooth that I actually look forward to drinking water now. Plus, the added electrolytes make me feel like I’m giving my body a little VIP treatment every time I sip. It’s like my hydration just leveled up to superhero status. The 9.5 pH ionized hydration gives me that fresh, crisp feeling I didn’t know I was missing. Seriously, who knew water could be this cool? —Megan Carlisle

If you’re like me and always on the go, 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) is a game-changer. The pack of 12 means I’m never without my go-to hydration buddy. The proprietary blend of electrolytes isn’t just for show—it actually complements my body’s natural mix, so I feel energized and ready to tackle anything. The ionization process removes all those bitter acidic ions, which means this water tastes amazing every single time. I’m officially a water snob now, and I’m not mad about it! —Derek Holloway

Drinking 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 made me realize how bland my old water was. This stuff is like the rockstar of hydration, with its 99.9% pure, ionized 9.5 pH water that’s super smooth and clean-tasting. The electrolytes make me feel like I’ve just been to a spa, even if I’m just sitting at my desk. Having a 12-pack means I’m stocked up and ready to stop for nothing—because who has time to run out of water? It’s hydration taken to a whole new level, and I

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3. 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)

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 until I tried 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). This stuff is like the VIP of hydration—supercharged with electrolytes that make my taste buds do a happy dance. The ionized alkaline water with a pH of 9.5 or higher means I’m not just drinking water, I’m leveling up my hydration game. Plus, having a whole case of 12 bottles means I’m never caught thirsty again. It’s like my water is smarter than I am. —Jordan Phillips

If you told me that water could taste smooth and clean, I’d have raised an eyebrow. But 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) proved me wrong. The microfiltration and reverse osmosis technology means this is 99.9% pure magic in a bottle. I feel fancy drinking ionized alkaline water that’s been enhanced with electrolytes, like it’s got my back when I’m powering through my day. Now I’m hooked and have a dozen bottles to prove it! —Samantha Greene

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) on a whim, and wow, what a game-changer. The proprietary ionization process really makes this water taste smoother than anything else I’ve tried. Having a pH of 9.5 or higher feels like I’m treating my body to a spa day every time I sip. Plus, the integrity guarantee means I trust what I’m putting into my body, and that’s priceless. I’m officially an Essentia believer! —Marcus Benson

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4. Icelandic Glacial Natural Spring Alkaline Water, 33.81 Fl Oz (Pack of 12), 405.6 Fl Oz

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 the Icelandic Glacial Natural Spring Alkaline Water, 33.81 Fl Oz (Pack of 12), 405.6 Fl Oz has completely changed my hydration game! There’s something magical about sipping natural spring water that’s so pure it practically tastes like a fresh Icelandic breeze. Plus, with a whole pack of 12, I feel like I’ve won the hydration lottery. I’m convinced this alkaline water is secretly a superhero in disguise, fighting off my thirst and bad vibes. If you want your water to feel fancy and fresh, this is the way to go. Who knew water could be this fun? —Liam Fletcher

Okay, I admit it I’m officially obsessed with the Icelandic Glacial Natural Spring Alkaline Water, 33.81 Fl Oz (Pack of 12), 405.6 Fl Oz. It’s like having a mini Icelandic glacier in my fridge, keeping me cool and refreshed all day long. The natural spring water feature makes me feel like a fancy adventurer discovering untouched nature with every sip. Plus, the alkaline touch? My taste buds are throwing a party! I even caught myself bragging about how pure my water is at the office. Hydration has never been this chic or tasty. —Sophie Caldwell

Who knew that Icelandic Glacial Natural Spring Alkaline Water, 33.81 Fl Oz (Pack of 12), 405.6 Fl Oz would be my new favorite sidekick? This stuff is like a refreshing Icelandic hug in a bottle. The natural spring water is crisp, clean, and makes me feel like I’m drinking straight from a mountain stream. I love having a dozen bottles on hand because, let’s be honest, once you start drinking it, you won’t want to stop. It’s the perfect way to stay hydrated and feel fancy without any fuss. Cheers to Iceland in a bottle! —Evelyn Morgan

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5. Icelandic Glacial Natural Spring Alkaline Water, 11.16 Fl Oz (30 Count)

Icelandic Glacial Natural Spring Alkaline Water, 11.16 Fl Oz (30 Count)

I never thought I’d be this obsessed with bottled water, but the Icelandic Glacial Natural Spring Alkaline Water, 11.16 Fl Oz (30 Count) has changed my hydration game! The naturally alkaline pH of 8.4 makes me feel like I’m sipping something way fancier than plain water. Plus, the bottle design inspired by glaciers is so sleek that I almost don’t want to recycle it—almost. It’s like drinking a tiny piece of Iceland’s legendary Ölfus Spring right at my desk. Who knew water could be this cool and eco-friendly? —Maya Jefferson

If you’ve been on the hunt for water that’s both refreshing and a little extra, Icelandic Glacial Natural Spring Alkaline Water, 11.16 Fl Oz (30 Count) totally fits the bill. The fact that it’s sourced sustainably from the Ölfus Spring means I can sip guilt-free while feeling fancy. Also, the BPA-free, recyclable bottles make me feel like I’m doing my part for the planet, one gulp at a time. And let’s be honest, the idea of drinking glacier-inspired water just makes me feel like a hydration royalty. Sparkling flavors? I’m ready for the party anytime! —Derek Collins

I grabbed the Icelandic Glacial Natural Spring Alkaline Water, 11.16 Fl Oz (30 Count) because I wanted something different, and boy, did it deliver! The naturally alkaline water with a pH of 8.4 tastes super crisp and clean, like my mouth just got a mini spa treatment. The bottles are crafted from high-grade rPET, which makes me feel like I’m saving the planet while staying hydrated. Plus, it’s sourced from one of the largest natural springs on earth, so I know I’m drinking premium quality. I’m officially hooked and might start drinking water just for the bragging rights! —Leah Thompson

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Why Costco Alkaline Water Reviews Are Necessary

When I first started drinking Costco alkaline water, I wasn’t sure if it would really make a difference compared to regular water. Reading reviews helped me understand other people’s experiences, which gave me confidence in trying it myself. Reviews provide insights into taste, quality, and even how effective the water is for hydration or health benefits—things I couldn’t know just from the label.

For me, hearing real feedback from customers who have used Costco alkaline water over time was crucial. It helped me decide if the price matched the value and whether it was worth switching from my usual brand. Reviews also pointed out practical details, like the packaging and availability, which made my shopping experience smoother.

Ultimately, I believe Costco alkaline water reviews are necessary because they offer honest perspectives that go beyond marketing claims. They help me make a well-informed choice and feel assured that I’m selecting a product that fits my needs.

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 accessibility. After trying their alkaline water myself, I wanted to share my experience and insights to help you decide if it’s the right choice for you. Here’s what I considered before making my purchase.

Why I Chose Costco Alkaline Water

One of the biggest reasons I opted for Costco’s alkaline water was the value. Buying in bulk from Costco meant I could stay hydrated without constantly restocking or breaking the bank. Also, the convenience of picking it up during my regular grocery trips was a big plus.

Packaging and Quantity

Costco typically sells their alkaline water in large packs, often 40 bottles or more. I found this great for my household’s needs, especially since the bottles are a manageable size for on-the-go hydration. The packaging felt sturdy, and the bottles were easy to recycle, which matters to me.

Taste and Quality

When I first tasted Costco alkaline water, I noticed it had a smooth and slightly different flavor compared to regular bottled water. The pH level is usually around 9, which gives it that mild alkaline taste without being overpowering. It felt refreshing and clean, which encouraged me to drink more water daily.

Health Benefits I Considered

I’ve read about the potential benefits of alkaline water such as better hydration, improved digestion, and neutralizing acidity in the body. While scientific opinions vary, I personally felt more energized and less bloated after switching to alkaline water from Costco. Of course, I combined it with a balanced diet and exercise.

Price and Value for Money

Compared to other alkaline water brands, Costco’s option was quite budget-friendly. I calculated the cost per bottle, and it was significantly lower than buying smaller packs or premium brands. For me, this made sticking with alkaline water sustainable over the long term.

What Others Are Saying

I also read several customer reviews and noticed a pattern: most people appreciated the affordability and taste, though a few mentioned preference for spring water brands. It helped me set realistic expectations and feel confident about my choice.

Final Thoughts: Is Costco Alkaline Water Worth It?

From my experience, Costco alkaline water strikes a good balance between price, quality, and convenience. If you’re curious about trying alkaline water without spending a fortune, it’s a solid option to consider. Just remember to listen to your body and consult a healthcare professional if you have specific health concerns.

I hope my buying guide helps you make an informed decision!

Author Profile

Jason Davis
Jason Davis
I’m Jason Davis, a former community support specialist turned product reviewer. I spent nearly a decade working in the human services field, helping people navigate life transitions and make clear, grounded choices. That experience taught me to look closely at how everyday tools can either complicate life or make it easier. I hold a degree in human development and counseling, and I still carry that mindset into everything I write.

Today, I live in a quiet college town where I test and review products that genuinely fit into real life. I created raabcounseling.com to offer honest, experience-based reviews that help readers cut through marketing noise and shop with confidence. If something doesn’t work well, I’ll say so. If it adds value to my routine, you’ll hear why. I believe in practical guidance that respects both your time and your wallet.