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Hydration you can feel.
Taste you'll crave.
Scientifically & medically developed to help you hydrate better, recover faster, and keep your routine on track. Millions of cans sold since 2014.
Shop O25,000+ 5-star reviews
60-day guarantee
No artificial junk
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As seen in:
Designed For Impact.
Perfected For Flavor.
9 in 10
O2 drinkers recommend it to a friend.
80% of
O2 drinkers say they perform better because of O2.
#1
reason people choose O2 over competitors is taste.
High Impact Hydration
A clean sports drink built to help you hydrate and bounce back faster so you can show up stronger each day.

Deliciously Enhanced Electrolyte Water
Light, clean, and crushable—designed to make all-day hydration easy and enjoyable.

Try Them All
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Sport Variety Pack
Add to cart $35.99✓ 6 cans of both flavors
✓ Includes Blackberry Currant and Lemon Lime -
Water Variety Pack
Sold Out✓ 6 cans of both flavors
✓ Includes Tropical Pineapple and Strawberry Lemonade
Only What You Need.
Nothing you don't.
Every ingredient in O2 is chosen for function so it’s backed by science, not marketing shortcuts.
No artificial
sweeteners
No dyes or
synthetic colors
No artificial
preservatives or flavors
No gluten, dairy,
soy, or nuts
Your Satisfaction is 100% Guaranteed.
If you're not completely satisfied with O2, we offer a 60 Day Money-Back Guarantee.
Why We Create Drinks Without Compromise
Our founder breaks down the dirty secrets in the beverage industry and what we’re doing about them.
Drinks Without Compromise
F.A.Q.
What’s the difference between O2 Sport and O2 Water?
O2 Sport: High Impact Hydration for training days — built for workouts and recovery with high electrolytes, 1g of sugar, and no artificial ingredients.
O2 Water: Deliciously enhanced electrolyte water for all-day hydration — light, crushable, and easy to sip anytime with zero sugar and no BS.
Is O2 carbonated?
Nope.
What's the catch with subscriptions?
There is no catch. You can pause, skip, change flavors/delivery frequency, or cancel any time. No strings attached.
How does the money-back guarantee work?
If you’re not satisfied with your purchase from drinko2.com (or an authorized U.S. retailer), email us at support@drinko2.com and we’ll make it right. Our 60-day money-back guarantee is available to original end-user purchasers in the United States, and requests must be submitted within 60 days of the original purchase date. Refunds cover the product purchase price only—shipping costs aren’t included.
Why is it called O2?
Some of our flavors (O2 Sport and O2 Water) include solubilized oxygen as part of our formulation approach, based on research suggesting ingested oxygen can take a different pathway than inhaled oxygen—via the GI-to-liver (portal) circulation. It’s designed to complement our electrolyte profile and help the body process toxins and recover faster.