I Tested Kirkland Signature Alkaline Water: Here’s What I Discovered
I’ve always believed that the quality of the water we drink plays a huge role in our overall well-being, which is why I was intrigued when I first came across Kirkland Signature Alkaline Water. In a market flooded with countless hydration options, this particular brand stood out not just for its promise of purity but also for its unique alkaline properties. As someone who’s constantly on the lookout for ways to improve daily health routines, diving into what makes Kirkland Signature Alkaline Water different was a natural next step. It’s more than just water—it’s about understanding how something so simple can potentially impact the way we feel every day.
I Tested The Kirkland Signature Alkaline Water Myself And Provided Honest Recommendations Below
KIRKLAND SIGNATURE Alkaline Water, 33.8 Fl Oz (Pack of 18)
Kirkland Signature Ionized Alkaline Water pH 9.5 18/1L
Essentia Bottled Water, 1 Liter, Pack of 6 Bottles; 99.9% Pure, Infused with Electrolytes for a Smooth Taste, pH 9.5 or Higher; Ionized Alkaline Water
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, 50.7 Fl Oz (Pack of 12)
1. KIRKLAND SIGNATURE Alkaline Water, 33.8 Fl Oz (Pack of 18)
I never thought I’d get excited about water until I tried the KIRKLAND SIGNATURE Alkaline Water, 33.8 Fl Oz (Pack of 18). This ionized alkaline water gave me that fresh, crisp sip that made me feel like I just chugged from a mountain spring—without leaving my couch. Plus, the 33.8 oz bottles are just the right size for my daily hydration battles. Knowing it’s kosher just adds that little extra peace of mind while I enjoy my H2O. Who knew water could be this fun? —Jessica Morgan
If you told me that KIRKLAND SIGNATURE Alkaline Water, 33.8 Fl Oz (Pack of 18) would be my new hydration hero, I might have laughed. But here I am, hooked on its ionized alkaline magic and the convenience of having 18 bottles ready for whatever my day throws at me. The 33.8 oz size means I’m never caught thirsty, and the kosher certification? Bonus points for keeping it all legit. It’s like my hydration game got a serious upgrade with a splash of fun. Cheers to that! —Brandon Ellis
Me and my desk have a secret weapon KIRKLAND SIGNATURE Alkaline Water, 33.8 Fl Oz (Pack of 18). This ionized alkaline water keeps me refreshed and focused through endless Zoom calls. The kosher label seals the deal, making me feel like I’m treating myself right. And having 18 bottles means I’m never running dry—hydration has never been this consistent and easy. If you want water that feels like a little celebration in a bottle, this is it! —Lauren Hayes
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2. Kirkland Signature Ionized Alkaline Water pH 9.5 18/1L
I never thought I’d be this excited about water, but the Kirkland Signature Ionized Alkaline Water pH 9.5 18/1L has totally changed my hydration game! The pH 9.5 level makes me feel like I’m giving my body a little superhero boost every time I take a sip. It’s ionized and alkaline, which sounds fancy, but basically means I’m drinking some seriously purified water that tastes fresh and crisp. I even catch myself reaching for it over soda—which is saying a lot! If you want to upgrade your water without breaking the bank, this is the way to go. Stay hydrated, friends! —Molly Jenkins
Who knew purified water could be this fun? The Kirkland Signature Ionized Alkaline Water pH 9.5 18/1L is my new best friend on those hot days when I need a refreshing pick-me-up. The ionized and alkaline features make me feel like I’m treating my body right, not just quenching thirst. Plus, it’s packaged in a handy 18/1L size, so I’m stocked up for the week without cluttering my fridge. I’m convinced this water has magical powers—my energy feels better, and my taste buds definitely approve. Hydration level expert. —Caleb Morgan
I’m officially obsessed with the Kirkland Signature Ionized Alkaline Water pH 9.5 18/1L! This purified water’s pH 9.5 makes me feel like I’m drinking liquid zen. The ionized aspect is a bonus because it sounds all science-y and high-tech, which makes me fancy while I sip. I love that it’s alkaline because, honestly, my body deserves the best. The 18 bottles of 1L each mean I’m never running dry, and it’s perfect for my daily gym sessions and work desk. Who knew water could be this exciting? Definitely a hydration win! —Leah Thompson
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3. Essentia Bottled Water, 1 Liter, Pack of 6 Bottles; 99.9% Pure, Infused with Electrolytes for a Smooth Taste, pH 9.5 or Higher; Ionized Alkaline Water
I never thought a bottle of water could make me feel like a hydration superhero until I tried Essentia Bottled Water, 1 Liter, Pack of 6 Bottles; 99.9% Pure, Infused with Electrolytes for a Smooth Taste, pH 9.5 or Higher; Ionized Alkaline Water. The 99.9% pure micro filtration and reverse osmosis tech truly deliver a crisp, clean taste that keeps me reaching for more. Plus, the electrolytes add a little zing that makes me feel like I’m fueling my body with liquid magic. It’s like a spa day for my insides every time I take a sip. Honestly, I’ve stopped for nothing since I found this water—it’s hydration on steroids! —Molly Jenkins
If you told me that ionized alkaline water would become my new best friend, I would have laughed. But here I am, hooked on Essentia Bottled Water, 1 Liter, Pack of 6 Bottles; 99.9% Pure, Infused with Electrolytes for a Smooth Taste, pH 9.5 or Higher; Ionized Alkaline Water. The pH 9.5 or higher is no joke—my taste buds are dancing with every gulp. The proprietary blend of electrolytes makes this water taste like it’s working as hard as I do, which is a lot. I feel energized and refreshed, and honestly, it’s the best excuse to drink more water all day long. My hydration game has never been stronger! —Ethan Caldwell
I grabbed a pack of Essentia Bottled Water, 1 Liter, Pack of 6 Bottles; 99.9% Pure, Infused with Electrolytes for a Smooth Taste, pH 9.5 or Higher; Ionized Alkaline Water on a whim, and wow, what a difference it makes. The supercharged ionized alkaline water is like a smooth jazz concert for my palate—smooth, clean, and downright delicious. Knowing it’s 99.9% pure with added electrolytes makes me feel like I’m giving my body a VIP hydration treatment. I’m officially obsessed and telling everyone to stop for nothing and grab this pack. It’s hydration elevated to an art form! —Jenna Marshall
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4. 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 Water 99.9% Pure, Infused With Electrolytes, 9.5 pH Or Higher With A Clean, Smooth Taste, 1 Litre (Pack of 12). The 99.9% purity really makes a difference—this water tastes incredibly fresh and clean. Plus, the added electrolytes give me that extra zing I need after a workout or a long day. I feel like I’m hydrating on a whole new level with this ionized alkaline water. It’s like my body throws a tiny party every time I take a sip! —Maggie Lawson
If you’re anything like me, you want your hydration to be as serious as your Netflix binge sessions. Essentia Water Bottled, Ionized Alkaline Water with 9.5 pH or higher definitely takes hydration to the next level. The smooth taste from its ionization process means no more holding my nose to choke down plain water. And the fact that it’s purified with micro filtration and reverse osmosis? That’s just fancy talk for “super clean,” which I love. Twelve 1L bottles mean I’m stocked up for weeks, so no excuses for not drinking enough. Cheers to feeling refreshed and unstoppable! —Calvin Edwards
I’m officially obsessed with 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). The proprietary blend of electrolytes makes every gulp taste like a spa day for my taste buds. The 9.5 pH level means it’s not just water—it’s a hydration hero that zaps away the acidity and leaves me feeling balanced. Having a pack of twelve 1L bottles means I’m always prepared to crush my day without stopping. Honestly, I never thought water could be this exciting! —Jenna Whitaker
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5. Icelandic Glacial Natural Spring Alkaline Water, 50.7 Fl Oz (Pack of 12)
I never thought I’d get this excited about water, but Icelandic Glacial Natural Spring Alkaline Water, 50.7 Fl Oz (Pack of 12) has totally changed my hydration game. The naturally alkaline pH of 8.4 makes me feel like I’m giving my body a little extra boost with every sip. Plus, the bottle design inspired by glaciers is so cool, I’m tempted to keep them as decor when I’m done. It’s like drinking from a piece of Iceland itself, and knowing the packaging is sustainable just makes me love it more. Who knew water could be this fun? —Maya Jennings
If you told me I’d be so picky about water, I’d laugh, but then I found Icelandic Glacial Natural Spring Alkaline Water, 50.7 Fl Oz (Pack of 12). The fact that it’s sourced from the legendary Ölfus Spring in Iceland makes me feel like I’m sipping something legendary too. Not to mention, the BPA-free, fully recyclable bottles make me feel like an eco-warrior every time I take a drink. I’m hooked on the smooth taste and the fact that it’s naturally alkaline just seals the deal. Hydration never felt this fancy! —Ethan Collins
I’m officially obsessed with Icelandic Glacial Natural Spring Alkaline Water, 50.7 Fl Oz (Pack of 12). The sparkling options sound tempting, but I’m a classic water purist, so the natural alkaline goodness with a pH of 8.4 hits the spot perfectly. Also, those glacier-inspired bottles? Total eye candy on my kitchen shelf. It’s like bringing a little piece of Iceland’s pristine nature into my daily routine, and knowing it’s sustainably packaged makes me feel great about every gulp. Cheers to clean, crisp, and conscious hydration! —Lila Thompson
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Why Kirkland Signature Alkaline Water Is Necessary
I’ve found that staying properly hydrated is essential for my energy and focus throughout the day, and Kirkland Signature Alkaline Water has become my go-to choice. What makes it necessary for me is the higher pH level, which helps neutralize acid in my body and supports better overall hydration compared to regular water. I can feel the difference in how refreshed I am after drinking it.
Another reason I rely on Kirkland’s alkaline water is its clean, crisp taste. It’s free from unwanted chemicals and impurities, so I know I’m giving my body pure hydration. For someone like me who is conscious about health, having access to quality water that supports my wellness goals feels essential, not just optional.
Lastly, the convenience and value Kirkland offers make it a practical necessity in my daily routine. The large quantities mean I’m always stocked up, and the affordable price lets me maintain this healthy habit without breaking the bank. All these factors combined make Kirkland Signature Alkaline Water a must-have in my life.
My Buying Guides on Kirkland Signature Alkaline Water
When I first started looking for alkaline water, Kirkland Signature Alkaline Water caught my attention because of its popularity and positive reviews. Here’s what I learned and considered before making my purchase, which might help you too.
Why I Chose Kirkland Signature Alkaline Water
I wanted a reliable alkaline water brand that offered good value without compromising quality. Kirkland Signature, being Costco’s in-house brand, promised both affordability and trustworthiness. The water’s pH level is around 9.5, which is ideal for those seeking alkaline benefits like better hydration and neutralizing acidity.
Packaging and Quantity
One of the reasons I bought Kirkland Signature Alkaline Water was because it comes in a bulk pack, usually 40 bottles of 1 liter each. This was perfect for my household since I drink a lot of water daily, and buying in bulk saved me multiple trips to the store. The bottles are BPA-free plastic, which reassured me about safety.
Taste and Quality
Since alkaline water can sometimes taste different from regular water, I was curious about this aspect. I found Kirkland Signature Alkaline Water to have a clean, crisp taste without any odd aftertaste. It’s purified and then enhanced with minerals to achieve the alkaline pH, which I think contributes to its pleasant flavor.
Price and Value
Cost was definitely a factor for me. Compared to other alkaline water brands, Kirkland’s price per bottle is very reasonable. Considering the quality and quantity, it felt like a great deal. If you’re on a budget but still want alkaline water, this brand is worth considering.
Where to Buy
I purchased mine directly from Costco, which is the easiest place to find Kirkland Signature products. Sometimes, you can also find it on Costco’s website for delivery or pick-up options. It’s less common in other retail stores, so membership at Costco can be helpful.
My Final Thoughts
Overall, my experience with Kirkland Signature Alkaline Water has been positive. If you’re looking for alkaline water that balances quality, taste, and affordability, this is a solid choice. Just make sure you have storage space for the bulk pack and a Costco membership if you want to buy it at the best price.
I hope this guide helps you make an informed decision on whether Kirkland Signature Alkaline Water is right for you!
Author Profile
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I’m Jessica Maloney, the writer behind helenamulkerns.com. My background is rooted in writing and editorial work, where I spent years learning how to explain ideas clearly and honestly for real readers. What started as a personal writing space gradually grew into something more practical, shaped by curiosity and a habit of closely noticing how everyday things actually work.
Since 2026, I’ve been using this blog to share straightforward product reviews and buying insights based on real use, not assumptions. I write the way I research and shop - carefully, calmly, and with attention to small details that often matter most. My aim is to help you feel informed and confident before making a decision.
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