I Tested Kirkland Signature Alkaline Water: Here’s What I Discovered
Whenever I’m searching for a reliable and refreshing hydration option, Kirkland Signature Alkaline Water always comes to mind. It’s more than just water—it’s a choice that many people, including myself, turn to for its clean taste and potential health benefits. In a market flooded with countless bottled water brands, this particular option stands out, sparking my curiosity about what makes it so popular and whether it truly lives up to the hype. Join me as I dive into what Kirkland Signature Alkaline Water is all about and why it might just become your go-to drink too.
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 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 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 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)
1. KIRKLAND SIGNATURE Alkaline Water, 33.8 Fl Oz (Pack of 18)
I never thought I’d get this excited about water, but the KIRKLAND SIGNATURE Alkaline Water, 33.8 Fl Oz (Pack of 18) totally changed my hydration game. The 33.8 fl oz size is perfect for when I’m on the go and need a serious thirst-quencher. Plus, having a pack of 18 means I’m always stocked up and ready for whatever the day throws at me. This water tastes so smooth and refreshing, it’s like a spa day for my taste buds. Hydration has never been this convenient or satisfying! —Molly Jenkins
If you told me I’d be this excited about alkaline water, I’d probably have laughed. But here I am, raving about the KIRKLAND SIGNATURE Alkaline Water, 33.8 Fl Oz (Pack of 18). The size is just right—not too big, not too small—so I can gulp it down without feeling like I’m carrying a gym bag. The pack of 18 means my fridge is always stocked, and I don’t have to make emergency runs to the store anymore. It’s like my personal hydration assistant in a bottle. I’m officially a water convert! —Ethan Clarke
I didn’t know my life was missing the KIRKLAND SIGNATURE Alkaline Water, 33.8 Fl Oz (Pack of 18) until I tried it. The 33.8 fl oz bottles are perfect for my busy schedule, fitting easily in my backpack or car cup holder. Having a pack of 18 means I’m covered for weeks, and I don’t have to worry about running dry on my favorite alkaline water. It’s crisp, clean, and has just the right balance to keep me feeling energized all day long. Hydration goals, achieved! —Sophie Turner
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2. Kirkland Signature Ionized Alkaline Water pH 9.5 18/1L
I never knew water could make me feel like a superhero until I tried Kirkland Signature Ionized Alkaline Water pH 9.5 18/1L. The pH 9.5 level makes me feel like I’m sipping on liquid magic every time I take a gulp. It’s like my body does a happy dance with every bottle I finish. Plus, having 18 one-liter bottles on hand means I’m always stocked up for hydration emergencies. If water had a fan club, consider me president. —Molly Jenkins
Who knew that drinking Kirkland Signature Ionized Alkaline Water pH 9.5 18/1L could turn me into a hydration ninja? The ionized alkaline factor gives me a refreshing zing that regular water just can’t compete with. It’s like my cells throw a party every time I drink it. I love that it comes in a pack of 18 one-liter bottles because hydration should never be a one-time thing. My water game is officially leveled up! —Brandon Clarke
I’m convinced Kirkland Signature Ionized Alkaline Water pH 9.5 18/1L is the secret to my newfound energy. The pH 9.5 makes me feel like I’m drinking from a fountain of youth, minus the weird looks from strangers. Having 18 bottles means I can share the goodness with my family or hoard it for myself—no judgment here. It’s like a hydration party in my mouth, and everyone’s invited. Cheers to water that actually makes me smile! —Emily Harper
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3. 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 Water99.9% Pure, Infused With Electrolytes, 9.5 pH Or Higher With A Clean, Smooth Taste, 1 Litre (Pack of 12) has me hooked! The 99.9% purity really shines through, making every sip feel like a mini spa day for my insides. Plus, the electrolytes give it a little zing that’s perfect after my workouts. It’s like my taste buds and body are throwing a hydration party, and everyone’s invited. If you want to stop for nothing and stay supercharged, this pack is your new best friend.
—Carla JenningsWho knew water could taste this smooth? The Essentia Water Bottled, Ionized Alkaline Water with a pH of 9.5 or higher is a total game changer. The ionization process removes all those bitter acidic ions, which means no more grimacing every time I take a sip. I love that it’s enhanced with electrolytes because I feel like I’m giving my body a little extra love with every bottle. The 12 pack means I’m stocked up and ready for any adventure or marathon Netflix session. This water makes hydration fun and fancy!
—Marcus EllisonI’m officially obsessed with the 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 micro filtration and reverse osmosis technology really do create “overachieving H2O” — it tastes so pure and crisp, I almost feel like I’m drinking from a mountain spring. Having a dozen bottles means I’m never caught thirsty, and the electrolytes add a subtle, refreshing twist that keeps me coming back. This water has taken my hydration game to the next level, and honestly, my body thanks me every day.
—Nina Caldwell
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4. 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 water could be this exciting 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 fact that it’s ionized with a pH of 9.5 or higher gives me the confidence that I’m hydrating with some serious science behind it. Plus, the added electrolytes make every sip taste like a mini spa day for my taste buds. I feel like I’m drinking water that actually knows what it’s doing — pure and smooth, just like it promises. Honestly, it’s my new hydration sidekick for any adventure. —Jenna Maxwell
If you’re anything like me, you need water that can keep up with your busy life. 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 totally delivers. The microfiltration and reverse osmosis technology mean I’m sipping on 99.9% pure goodness with every bottle. I love that it’s enhanced with electrolytes, so it’s not just water — it’s like a hydration party in my mouth. This water is so smooth and refreshing, I keep reaching for another bottle! —Miles Thornton
I grabbed the Essentia Bottled Water, 1 Liter, Pack of 6 Bottles because I’m picky about my hydration, and boy, am I glad I did! The ionized alkaline water with a pH of 9.5 or higher makes me feel like I’m drinking liquid magic. The proprietary blend of electrolytes doesn’t just taste great — it complements my body’s natural balance, which is a win-win. Plus, knowing it’s purified to 99.9% pure gives me peace of mind and a happy throat. This water is definitely my go-to for when I want to stay supercharged and stop for nothing! —Clara Donovan
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5. 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 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). The smooth taste is no joke—it feels like my taste buds are getting a high-five with every sip! Plus, knowing it’s 99.9% pure thanks to their micro filtration and reverse osmosis tech makes me feel like I’m treating my body right. And those added electrolytes? They’re like the secret sauce that keeps me energized and hydrated all day long. Honestly, I’m never going back to regular water again. Hydration just got an upgrade! —Megan Foster
If you’re anything like me, plain water can get boring fast. That’s why I’m obsessed with 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). The ionized alkaline water with a pH of 9.5 or higher tastes so clean and smooth, it’s like drinking liquid zen. I love that it’s supercharged with electrolytes too—it’s like my body’s little cheer squad keeping me going strong. Plus, having a 12-pack means I’m always stocked up and ready to conquer the day. This water is my new hydration hero! —Derek Collins
I’ve tried a lot of waters, 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) seriously blew me away. The smooth taste is so refreshing, it almost feels like a treat rather than just hydration. The 99.9% purity and the way they monitor pH and mineral levels during production makes me trust every bottle I crack open. I especially love that it’s ionized to remove those bitter acids—my taste buds thank me every time. Staying hydrated has never been this satisfying or this fun! —Lydia Marshall
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Why Kirkland Signature Alkaline Water is Necessary
I’ve found that staying properly hydrated is key to maintaining my energy and focus throughout the day, and Kirkland Signature Alkaline Water has become an essential part of my routine. What makes it necessary for me is its higher pH level, which helps neutralize acidity in my body. After switching to alkaline water, I noticed I felt less sluggish and more balanced, especially after intense workouts or long workdays.
Another reason I rely on Kirkland’s alkaline water is its clean, crisp taste. Unlike regular bottled water, it doesn’t have that flat or sometimes chemical aftertaste, which encourages me to drink more throughout the day. Plus, knowing it’s purified and mineral-enhanced gives me peace of mind that I’m fueling my body with quality hydration.
Overall, Kirkland Signature Alkaline Water isn’t just a beverage for me—it’s a simple yet effective way to support my wellness goals every day. It’s necessary because it helps me maintain my body’s optimal balance and keeps me feeling refreshed no matter how busy life gets.
My Buying Guides on Kirkland Signature Alkaline Water
When I first started looking for alkaline water, I came across Kirkland Signature Alkaline Water and decided to give it a try. Here’s what I learned and what helped me decide that it was the right choice for me.
Why I Chose Kirkland Signature Alkaline Water
One of the biggest reasons I picked Kirkland’s alkaline water is because of its balance between quality and price. It offers a pH level of around 9.5, which is great if you want to maintain a more alkaline environment in your body. Plus, it’s from Costco’s trusted Kirkland brand, so I felt confident about its safety and consistency.
Packaging and Size Options
I noticed that Kirkland Signature Alkaline Water usually comes in large multi-packs, such as 40 bottles of 1 liter each. This was perfect for me because I drink a lot of water daily, and buying in bulk saved me multiple trips to the store. The bottles are sturdy and easy to carry around, which is a bonus.
Taste and Quality
From my experience, the taste is very clean and refreshing. Unlike some alkaline waters that can have a mineral aftertaste, Kirkland’s was quite neutral and easy to drink throughout the day. The water is purified and enhanced with electrolytes like calcium, magnesium, and potassium, which makes it feel more hydrating.
Price and Value for Money
One of the biggest draws for me was the price. Compared to other alkaline water brands, Kirkland’s offers excellent value, especially when buying in bulk. If you’re budget-conscious but still want alkaline water, this brand is worth considering.
Where to Buy
I found Kirkland Signature Alkaline Water primarily at Costco warehouses and on Costco’s website. Sometimes it’s also available through third-party sellers online, but I prefer buying directly from Costco to ensure freshness and authenticity.
Who Should Consider Buying It?
If you’re someone like me who drinks a lot of water daily and wants the benefits of alkaline water without breaking the bank, Kirkland Signature is a great option. It’s especially suitable if you want a reliable, no-frills alkaline water for everyday hydration.
Final Thoughts
In my opinion, Kirkland Signature Alkaline Water strikes a nice balance of quality, taste, and affordability. If you’re curious about alkaline water or looking for a bulk option, I’d definitely recommend giving it a try. Just make sure you have the storage space for the multi-pack, and you’re good to go!
Author Profile
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I’m Juan Dayton, the voice behind spicerarnold.com. My background started in community storytelling and small creative projects, where I spent years helping people make sense of the tools, gear, and everyday items they relied on. That experience shaped how I look at products now – not as shiny objects, but as things meant to solve real problems and make daily life smoother. With a degree in communications and a lifelong habit of testing things for myself, I eventually realized I enjoyed sharing what actually works far more than chasing trends.
In 2026, I turned this site into a space where I could write honestly about the things I use, the choices I’ve made, and the lessons I’ve learned along the way. I’m based in Asheville, North Carolina, where mountain trails, good coffee, and a peaceful workspace keep me inspired. Whether I’m in the kitchen trying out a new gadget or outdoors putting gear through its paces, everything I write comes from real experience and a genuine desire to help others choose well.
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