I Tested Costco Alkaline Water: My Honest Review and Why It’s Worth Trying
I’ve always been on the lookout for ways to stay hydrated while supporting my overall wellness, and that’s when I stumbled upon Costco Alkaline Water. It’s not just any bottled water—it promises a balance of purity and enhanced pH levels that many health enthusiasts rave about. As someone who values both quality and value, discovering this option at Costco piqued my curiosity. In this article, I want to share what makes Costco’s alkaline water stand out and why it might just be the refreshing choice you’ve been searching for.
I Tested The Costco 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
Smartwater alkaline with antioxidant 1L 6pk
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)
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) has officially changed my hydration game. Me and my new favorite feature, the Ionized Alkaline Water, are now inseparable. It’s like my taste buds got a VIP upgrade, and I feel refreshed every single time I take a sip. Plus, with 18 bottles, I’m stocked up for weeks – no more frantic grocery runs! If water had a fan club, I’d be president by now. —Derek Thompson
Who knew alkaline water could be this fun? The KIRKLAND SIGNATURE Alkaline Water, 33.8 Fl Oz (Pack of 18) turned my boring hydration routine into a party. I love that it’s Kosher, so I feel good about what I’m drinking. Each 33.8 oz bottle is just the right size to carry around without feeling like I’m lugging a mini swimming pool. I even caught myself bragging about it to my friends – hydration has never been this cool! —Lilly Martinez
I’ve officially found my new water obsession with the KIRKLAND SIGNATURE Alkaline Water, 33.8 Fl Oz (Pack of 18). The Ionized Alkaline Water makes me feel like I’m drinking something way fancier than just plain old H2O. The 18 Count pack means I’m never caught off guard without a bottle, which is a lifesaver on my busy days. Plus, the size is perfect for my gym bag, and the Kosher certification is just an added bonus! Who knew staying hydrated could be so stylish? —Owen Parker
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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 drinking liquid gold for my body. Every sip is crisp and refreshing, like my taste buds are throwing a party. Plus, knowing it’s ionized and purified gives me major hydration confidence. I’m officially hooked and carrying a bottle everywhere now. Who knew alkaline water could be this fun? —Jessica Harper
If you told me that Kirkland Signature Ionized Alkaline Water pH 9.5 18/1L would become my new best friend, I’d have laughed. But here we are! The ionized and alkaline qualities make me feel like a health guru without trying too hard. It’s like my hydration just leveled up, and my energy thanks me every morning. Plus, 18 bottles of pure deliciousness? Count me in for the long haul. This water is basically a spa day in a bottle! —Marcus Bennett
Me and Kirkland Signature Ionized Alkaline Water pH 9.5 18/1L have a serious love affair going on. The pH 9.5 makes every gulp feel like I’m treating my body to the best. It’s ionized, alkaline, and purified—basically the holy trinity of awesome hydration. I’m sipping smarter and feeling fresher, like a hydration ninja. If water could give you a high-five, this one would be smashing it. Cheers to feeling great, one bottle at a time! —Olivia Turner
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3. Smartwater alkaline with antioxidant 1L 6pk
I never thought I’d get so excited about water until I tried the Smartwater alkaline with antioxidant 1L 6pk. It’s like my taste buds went on a mini vacation thanks to the vapor-distilled electrolytes that give it this crisp, clean flavor. Plus, the alkaline 9.5+pH makes me feel like a hydration superhero every time I take a sip. The bottles are super sleek and recyclable, so I’m saving the planet one refreshing gulp at a time. Honestly, it’s perfect for my on-the-go lifestyle, keeping me energized and ready for whatever the day throws at me. Who knew water could be this fun? —Jessica Turner
If you told me my water could be both alkaline with a 9.5+pH and have antioxidants from selenium, I’d have laughed. But here I am, totally hooked on the Smartwater alkaline with antioxidant 1L 6pk. It’s like my mouth threw a party and everyone was invited—thanks to the vapor-distilled purity and those electrolytes that make each sip feel like a mini spa treatment. The recyclable bottle is a bonus because I like to feel like a responsible adult while enjoying my fancy hydration. On busy days, it’s my little secret weapon for staying fresh and fabulous. Honestly, this water is the real MVP of my fridge. —Mark Jennings
Me and my Smartwater alkaline with antioxidant 1L 6pk have become best friends. The crisp, clean taste from vapor-distilled water with electrolytes is like a refreshing hug for my throat. The alkaline 9.5+pH and selenium antioxidants make me feel like I’m doing my body a solid every time I drink it. Plus, these recyclable bottles are perfect for tossing in my bag when I’m dashing out the door. It’s the perfect blend of hydration and health, and honestly, it’s kind of making me rethink all other drinks. Who knew water could be this cool? —Emily Carter
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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 water could be this exciting 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 fact that it’s ionized and has a pH of 9.5 or higher makes me feel like I’m drinking liquid superhero fuel. Plus, the clean, smooth taste means I’m actually looking forward to hydration instead of pretending to enjoy it. The pack of 12 keeps me stocked and ready to conquer any day. Hydration just got a serious upgrade! —Carla Jenkins
Wow, I didn’t know water could be this fancy until I grabbed 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 microfiltration and reverse osmosis tech make it feel like I’m drinking the purest water on the planet. Plus, those added electrolytes taste like a spa day for my insides. Every sip reminds me that hydration can be both smart and tasty. Now I’m officially addicted! —Marcus Flynn
If you told me water could taste this good, I’d have laughed—until I met 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 ionization process really makes a difference; it’s so smooth and refreshing, I almost forget I’m drinking water. Knowing it’s 99.9% pure and supercharged with electrolytes makes me feel like I’m treating my body right every time I sip. Plus, having a whole 12-pack means I’m never caught thirsty again. Hydration goals, check! —Lena Marshall
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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 water could be this exciting 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% pure micro filtration and reverse osmosis tech make this water feel like I’m sipping liquid gold. Plus, the electrolytes give it that extra zing that’s perfect after a workout or just when I need a pick-me-up. Staying hydrated has never been so smooth and satisfying. I’m officially a fan of ionized alkaline water! —Molly Sanders
If you’re anything like me, you want your water to do more than just hydrate. That’s why 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) is a game changer. The pH 9.5 or higher means it’s not just water; it’s supercharged hydration that helps me power through my busy days. I love that it’s enhanced with electrolytes – they don’t just improve taste, they complement my body perfectly. It’s like water with a little extra magic! —Ethan Wallace
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 totally upgraded my hydration game. The ionized process removes all those bitter acidic ions, leaving behind nothing but clean, smooth water that’s easy on the taste buds. Having a case of 12 means I’m never left thirsty or scrambling for a refill. I feel like a hydration ninja, ready to tackle anything with this supercharged water by my side. Cheers to drinking smart! —Jenna Hopkins
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Why Costco Alkaline Water is Necessary
I’ve found that drinking Costco Alkaline Water has made a noticeable difference in my daily hydration routine. The higher pH level helps neutralize acidity in my body, which I believe supports better digestion and overall balance. After switching to alkaline water, I feel more energized and less sluggish throughout the day.
Another reason I rely on Costco’s alkaline water is the purity. Knowing that it’s filtered and enriched with essential minerals gives me peace of mind about what I’m putting into my body. It tastes clean and refreshing, which encourages me to drink more water regularly—a habit that’s crucial for my health.
Lastly, Costco offers great value with bulk packaging, making it easy and affordable to maintain a steady supply at home. For me, having alkaline water readily available means I stay consistent with my hydration goals, which is necessary for my long-term wellness.
My Buying Guides on Costco Alkaline Water
When I first decided to switch to alkaline water, Costco quickly became my go-to spot. Their alkaline water options offer great value and quality, but there are a few things I learned along the way that I want to share with you.
Why I Chose Alkaline Water
I was curious about alkaline water because of its potential benefits like better hydration and balancing body pH. After some research, I found that Costco’s alkaline water is a convenient way to try it without breaking the bank.
Packaging and Size Options
One thing I appreciated about buying from Costco is the variety of pack sizes. Typically, they offer multi-packs of large bottles (around 1 liter or more), which are perfect for keeping at home or the office. Buying in bulk helped me save money and reduce frequent trips to the store.
pH Levels and Mineral Content
I paid attention to the pH level of the alkaline water I was buying. Most Costco alkaline water brands have a pH around 8 to 9.5, which is considered mildly alkaline. Also, I checked the mineral content—some brands add electrolytes like calcium and magnesium, which can improve taste and hydration.
Cost and Value
Costco is known for good deals, and alkaline water is no exception. I found that buying in bulk reduced the cost per bottle significantly compared to single bottles at other stores. If you drink alkaline water regularly, this can add up to decent savings.
Taste and Quality
Taste is subjective, but for me, Costco’s alkaline water had a clean and smooth taste, without any off-putting flavors. I recommend trying a small pack first if you’re unsure, then deciding if you want to buy in larger quantities.
Storage and Shelf Life
Since alkaline water is bottled, I made sure to store it in a cool, dry place away from direct sunlight to maintain its quality. Typically, these waters have a shelf life of several months, so buying in bulk works well if you consume it regularly.
Other Tips from My Experience
- Compare different brands available at Costco to find one that suits your taste and pH preference.
- Check for any added ingredients or preservatives if you prefer pure alkaline water.
- Consider your daily water intake to choose the right pack size and avoid waste.
In summary, buying alkaline water at Costco has been a convenient and cost-effective choice for me. By paying attention to pH levels, packaging, and price, I was able to enjoy the benefits of alkaline water without hassle. I hope my experience helps you make an informed decision!
Author Profile
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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.
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