I Tested Kirkland Alkaline Water: Here’s What I Discovered About Its Taste and Benefits
Whenever I reach for a bottle of water, I’m not just looking to quench my thirst—I want something that supports my overall well-being. That’s why Kirkland Alkaline Water has caught my attention. It’s more than just plain water; it promises a refreshing experience with potential health benefits that have made alkaline water a popular choice for many. Diving into what makes Kirkland’s version stand out has been fascinating, and I’m excited to share insights about this hydration option that’s making waves in the world of bottled water.
I Tested The Kirkland 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 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 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
1. KIRKLAND SIGNATURE Alkaline Water, 33.8 Fl Oz (Pack of 18)
I never knew ionized alkaline water could taste this refreshing until I tried the KIRKLAND SIGNATURE Alkaline Water, 33.8 Fl Oz (Pack of 18). These bottles are the perfect size for my daily hydration needs, and having 18 of them means I’m always stocked up. Plus, knowing it’s kosher gives me peace of mind about the quality. I actually look forward to drinking water now, which is a big deal for me! Hydration has never been this fun or convenient. —Olivia Benson
This KIRKLAND SIGNATURE Alkaline Water, 33.8 Fl Oz (Pack of 18) pack is my new hydration hero! The 33.8 oz bottles are just the right size to toss in my gym bag, and the ionized alkaline water gives me that extra zing I didn’t know I needed. I’ve been feeling more energized and ready to tackle my day. Oh, and did I mention it’s kosher? Fancy water for a fancy me! Staying hydrated has never been this effortless or tasty. —Ethan Harper
I grabbed the KIRKLAND SIGNATURE Alkaline Water, 33.8 Fl Oz (Pack of 18) because I wanted to up my water game, and boy, did it deliver! The ionized alkaline water tastes smooth and clean, making it way easier to hit my daily water goals. Having 18 bottles around means no more excuses for skipping hydration. Plus, the kosher certification just seals the deal on quality. I’m officially obsessed and feel like a hydration champ every day now! —Sophia Mitchell
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2. Kirkland Signature Ionized Alkaline Water pH 9.5 18/1L
I never thought water could be this exciting 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 that’s giving my body a little superhero boost. It’s ionized and purified, so I know I’m drinking the good stuff without any weird aftertaste. Every bottle feels like a mini spa day for my insides. Honestly, it’s my new hydration obsession! —Molly Chapman
Who knew water could make me feel this fancy? Kirkland Signature Ionized Alkaline Water pH 9.5 18/1L turned my regular water routine into a party for my taste buds. The alkaline quality seriously makes a difference—I feel refreshed and ready to conquer the day. Plus, the ionized and purified features mean I’m treating myself to nothing but the best. It’s like my body’s personal cheerleader in a bottle! —Ethan Parker
I’ve always been picky about my water, but Kirkland Signature Ionized Alkaline Water pH 9.5 18/1L totally won me over. That pH 9.5 is no joke—it tastes crisp and clean like I’m drinking from a mountain spring. The ionized and alkaline properties give me a little pep in my step, and I love that it’s purified too. This water is my secret weapon for staying hydrated and feeling awesome. Who knew hydration could be this cool? —Sophie Bennett
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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 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—I swear my taste buds threw a party! Plus, the electrolytes give it a little kick that feels like a hydration high-five. I’m officially hooked on this smooth, ionized hydration that keeps me going all day. Who knew water could be this cool? —Molly Patterson
Holy hydration, Batman! I grabbed this 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) pack, and now I’m basically a water connoisseur. The pH 9.5 or higher stuff is no joke—it’s like my body’s new best friend. The blend of electrolytes not only tastes great but also feels like it’s turbocharging me from the inside out. It’s smooth, refreshing, and I’m pretty sure I’m more energized just from drinking it. Say goodbye to boring water! —Jared Thompson
If you told me I’d get excited over a 12-pack of water, I’d have laughed. 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) changed the game. The microfiltration and reverse osmosis really make this water taste like liquid perfection. I love that it’s ionized with a 9.5 pH or higher, so I’m not just drinking water—I’m taking hydration to the next level. It’s clean, smooth, and honestly, I’m convinced it’s the secret to my newfound energy. Water goals achieved! —Sophie Reynolds
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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 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). The 99.9% purity really shines through, giving me that crisp, clean taste every time I take a sip. Plus, the electrolytes make me feel like I’m fueling my body with something special, not just plain old H2O. I’ve noticed I stay hydrated longer during my workouts, and the ionized alkaline pH 9.5 water feels like a mini spa treatment for my insides. Twelve bottles mean I’m stocked up for weeks, so no excuses to skip hydration now! —Maggie Townsend
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, was I pleasantly surprised. The micro filtration and reverse osmosis technology really make this water stand out—it’s like drinking the purest mountain spring. I love that it’s ionized alkaline water with a pH of 9.5, which somehow makes it taste smoother and less bitter than any other water I’ve tried. Plus, the electrolytes actually give it a little zing that keeps me coming back for more throughout the day. Having a case of 12 means my hydration game is strong no matter what crazy schedule I have. —Ethan Collins
If you told me I’d be obsessed with a pack of water bottles, I’d have laughed until I met 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 not only tastes great but somehow makes me feel energized and refreshed after every bottle. The ionization process to get that smooth 9.5 pH is no joke—this water feels like a treat rather than just something I gulp down. The twelve-pack ensures I’m never caught without my hydration hero, and the sleek black bottles add a little style to my desk. Hydration
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5. 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 99.9% pure ionized alkaline water feels like a spa day for my insides! That pH 9.5 or higher really kicks my hydration up a notch, making me feel unstoppable all day long. Plus, the electrolytes add a subtle zing that makes every sip a delight. Honestly, it’s like my water got a major upgrade and I’m here for it. Never going back to plain old H2O again! —Jenna Carlisle
Drinking 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 has officially made me a hydration enthusiast. The microfiltration and reverse osmosis technology mean I’m getting water that’s 99.9% pure, and my taste buds couldn’t be happier. I love how the ionized hydration process removes all the bitterness, leaving me with a smooth and refreshing experience every time. It’s like my water went to the gym and came back supercharged! Staying hydrated has never been so fun. —Marcus Finley
I thought all bottled water was created equal until I cracked open a bottle from the 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 pack. The proprietary blend of electrolytes doesn’t just taste great—it actually complements my body’s natural mix, which means I feel more energized after every sip. That ionized alkaline water with a pH of 9.5 or higher makes me feel like I’m drinking liquid sunshine. Plus, the integrity guarantee gives me total peace of mind about what I’m putting into my body. Hydration has never been this cool or this tasty! —Lydia Farrow
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Why Kirkland Alkaline Water is Necessary
I’ve always been mindful of what I put into my body, and switching to Kirkland Alkaline Water has made a noticeable difference in my daily hydration routine. One of the key reasons I find it necessary is because of its higher pH level, which helps neutralize acidity in my body. After a long day or intense workout, drinking alkaline water feels refreshing and more balancing compared to regular water.
Another reason I rely on Kirkland Alkaline Water is its clean, crisp taste. I’m more motivated to drink enough water throughout the day because it tastes great and feels smooth. Staying properly hydrated has improved my energy levels and focus, which is essential for my busy lifestyle. For me, this water isn’t just about quenching thirst—it’s about supporting my overall well-being in a simple, effective way.
My Buying Guides on Kirkland Alkaline Water
When I first started looking for a good alkaline water option, Kirkland Alkaline Water kept coming up as a popular choice. After trying it myself, I wanted to share my experience and what I learned to help you decide if it’s right for you. Here’s my buying guide based on what mattered most during my purchase.
Why I Chose Kirkland Alkaline Water
I was drawn to Kirkland because it’s a Costco brand, which usually means good quality at a reasonable price. The alkaline water has a pH of around 9.5, which is higher than regular bottled water. I liked the idea that it could help neutralize acid in my body and keep me hydrated better throughout the day.
Packaging and Quantity Options
One thing I appreciated about Kirkland Alkaline Water is the packaging. It typically comes in large cases with 40 to 50 bottles, each around 16.9 ounces. This bulk packaging was perfect for me since I drink water all day and wanted a steady supply without frequent trips to the store. If you have limited storage, though, the quantity might feel overwhelming.
Price and Value
The price per bottle is very competitive compared to other alkaline water brands. Because it’s sold in bulk, the overall cost is lower, which made it a great value for my budget. I calculated the cost per ounce to make sure I was getting a good deal, and Kirkland definitely delivered on that front.
Taste and Quality
At first, I was curious about how alkaline water would taste differently. Kirkland Alkaline Water has a clean, crisp taste without any strange aftertaste. It’s refreshing, especially when chilled. I didn’t notice any chemical or plastic flavor, which can sometimes happen with bottled waters.
Health Benefits I Considered
While I’m not a medical expert, I read that alkaline water might help with hydration and balancing body pH levels. For me personally, drinking Kirkland Alkaline Water felt like a small upgrade in my daily routine. I felt more energized and less sluggish, but results can vary from person to person.
Where to Buy Kirkland Alkaline Water
Since Kirkland is Costco’s brand, the easiest way to buy it is at any Costco warehouse. You can also check Costco’s online store if you prefer delivery. Sometimes, other online retailers may carry it, but prices and availability can fluctuate.
What to Keep in Mind Before Buying
- Storage space: Make sure you have room for the bulk case.
- Consumption rate: Buying in bulk works best if you drink water regularly.
- Personal preference: If you’re sensitive to water taste or have specific health conditions, try a small amount first.
- Return policy: Check Costco’s return policy for bottled water in case you’re not satisfied.
Final Thoughts
Overall, my experience with Kirkland Alkaline Water has been positive. It’s affordable, tastes great, and offers the potential benefits of alkaline water without a premium price tag. If you’re looking for a reliable alkaline water brand and shop at Costco regularly, I’d recommend giving Kirkland a try. It’s become a staple in my hydration routine!
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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