Like a bowl of mixed summer berries — a little juicy, a little jammy, smooth, and not overly sweet.
550mg
Electrolytes
1g
Sugar and 15 calories
Only 10
Ingredients
No
Artificial sweeteners, flavors, or colors
Taste
Mixed berry flavor with a smooth, juicy finish. Unique enough to be interesting, light enough to sip all day.
Why it's different
Blackberry Currant feels more elevated than typical sports drink flavors, while still giving you the hydration support you want.
Best for
Training, recovery, warm days, daily hydration, and anyone who wants a more flavorful hydration option.
Just Clean Ingredients
Every ingredient in O2 is chosen for function so it’s backed by science, not marketing shortcuts.
Oxygenated Water
A clean, refreshing base that lets the flavor and function shine.
Erythritol
A naturally occurring sugar alternative that maintains a smooth, easy-drinking finish.
Sodium Citrate
One of the core electrolytes in O2’s hydration formula. Sodium helps your body retain fluids and supports effective hydration.
Organic Sugar
Used sparingly to round out the taste and improve drinkability.
Malic Acid
Adds crispness and helps bring out the fruit flavors.
Monopotassium Phosphate
A key electrolyte that works alongside sodium to support hydration and fluid balance.
Natural Flavors
Create the blackberry currant flavor profile.
Citric Acid
Adds brightness and helps keep the finish crisp and refreshing.
Stevia Extract (Rebaudioside A)
A plant-based sweetener that adds sweetness without artificial sweeteners.
Monk Fruit Extract
A premium fruit-based sweetener that helps round out the flavor and keep sweetness balanced.
Customer Reviews
Overall rating: 4.8 / 5 from 129 reviews.
Long time O2 fan - out here in Colorado it's essential to stay hydrated - and, to hydrate as part of recovery after hikes, bikes, and/or skis! Also, we keep it on hand for our many visitors who aren't quite used to the dry, higher altitude, thin-air situation out here!
(Plus, it's a MUST to take on ski trips - many (i.e. ALL) of the flavors are fantastic - great for recovery - AND they mix well with many different adult beverages!)
My O2 drinks never disappoint. The shipping however not so much. When I received my order a bunch of the cans were busted up and bent out of shape from being tossed around in shipping. I feel once these are packaged in the little box they come in they should be wrapped to keep them from falling out of the sides.
I’ve been drinking O2 for several years. I love the crisp taste and the hydration. I only use the non-caffeinated options as my body doesn’t process caffeine well and appreciate having 2 flavors.
Love the flavor and it is great for my husband who needs to keep his electrolytes balanced with his Lewy Body Parkinson's, Helps keeps his energy level up and alertness. Taste delicious! Thats a bonus.
The best tasting hydration drink I've ever tried! I teach hot yoga classes, and I always have one right after class - very refreshing! I've tried several other brands over the years, and this is by far the best hydration drink!
Refreshing - Better than all others!
This is the best hydration drink for everyday consumption. For a busy professional, I need the benefits of sustained hydration at work and on the road. Nothing better.
My favorite post workout drink.
This has been my favorite post workout drink since I first had it when they sponsored the Madison Club at the CrossFit Games. My only gripe is that I still have to order it online because it’s never made it to a store near me.
great product!
I am always a little skeptical trying sports drinks. My is selling them and I decided to try; well I am so glad I did. Very refreshing and not too sweet. I like seltzer and this drink is not carbonated but I add a little to mine and it really ups the game. I like the Blackberry current, not a fan of caffeinated drinks. I look forward to my o2 Hydration everyday after my workout.