1,200+ verified 5-star reviews
543 ReviewsTurns ordinary water into something extraordinary, infused with molecular hydrogen, the smallest and most powerful molecule in the universe. It helps your cells fight oxidative stress, recover faster, and keep your system running clean, like a daily tune-up at the cellular level.
Supports Energy
Improves Recovery
Promotes FocusWe build the Flask in small, limited runs so every unit gets the same attention. Each Flask is assembled, its hydrogen generator tested, and its output verified before it’s packed and shipped to you.
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sold of 3,000 units in the November Drop 2
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Before it ships
Buy now, cancel anytime before shipment
Full refund, no questions asked, until your Flask ships.
After it arrives
Our 3-60 Guarantee
Drink 3 Flasks a day for 60 days. Don’t love it? Return it for a full refund.
Covered for years
5-year warranty
Every Flask is backed by a full 5-year warranty.
Pay pre-tax
HSA/FSA eligible
Pay with pre-tax dollars at checkout.
Reduce oxidative stress and prevent lactic buildup during workouts.
Plays a role in the gut’s natural microbial ecosystem.
Stay mentally sharp and in control throughout your day.
Get the kind of rest that leaves you clear, calm and ready.
1200+ Verified 5 Star Reviews
PlayAndrew Huberman
Neuroscientist
“Get the Echo Flask. It's a game-changer. I Love It.”
Chris Williamson
Modern Wisdom
“Hydrogenated water is far different than regular water. The way that hydrogen gas dissolved in water actually affects your cells... hydrogenated water can act as an exercise mimetic, just like ‘exercise in a pill...’”
Ben Greenfield
Author, Nutritionist, Physiologist, Fitness Coach
“I don’t carry many gadgets. But here’s the test: if I notice skipping it, it stays. The Echo Flask made the cut.”
Tim Gray
Community-First Biohacker
“I’ve been using ECHO Hydrogen Water for a few years now and it’s one of the simplest ways to feel better, think clearer, and show up at my best.”
Ben Giese
RIDEBYND Podcast Host
“If you’re serious about performance and longevity, upgrading your water is non-negotiable. Echo changed the game for me.”
Jesse James West
YouTube Personality, Body Builder
*These are individual experiences, results may vary.
| Feature | ECHO Flask | Competitors |
|---|---|---|
| Capacity | 12oz | ≤ 8oz |
| Lab-tested hydrogen | Up to 8 ppm (20-min cycle) | < 5ppm |
| Smart Technology |  |  |
| Health App Integrated | | |
| H2 Analytics Certified | | |
| No Harmful Chemicals | | |
| No Heavy Metals | | |
| Proton Exchange Membrane | | |
| 5-Year Warranty | | |
The smallest molecule in the universe, Hydrogen has been studied for its ability to support healthy energy metabolism and redox balance—two key drivers of stamina, metabolic efficiency, and humans who push harder and go further.
Fuel your cells by supporting the systems behind endurance and recovery. By helping your body manage oxidative stress, it promotes better performance under pressure—whether you’re crushing a workout, a deadline, or both.
Resilience isn’t optional—it’s your edge. Hydrogen water can play a role in cellular signaling, stress recovery, and aging resilience. When your cells bounce back faster, so do you. Stay sharp, stay strong, and live fully charged
Real recovery starts at the source. Hydrogen-rich water is being explored for its potential to support the body’s natural repair processes. Whether you're training, fasting, or just demanding more from life, hydrogen is your quiet recovery ally.
Your gut isn’t just about digestion—it’s a command center for immunity, energy, and mood. Research suggests hydrogen may support gut balance and reduce oxidative load, helping you feel more aligned from the inside out.
Hydrogen has been studied for its ability to help the body manage inflammation and oxidative stress in the brain—factors that influence focus, alertness, and mental endurance. Stay in the zone, longer.
We've Perfected Hydrogen
NO Heavy MetalsNO BPAsNO PH ChangeNO ChlorineNO PFAsThe ultimate wellness boost
2,200+
Peer-Reviewed Studies
150+
Years of Research Across the Globe
40+
Proven Benefits For Every Lifestyle
104K+
Happy Echo Customers (and counting)
The US Food and Drug Administration has recognized hydrogen gas as a food additive that is generally recognized as safe (GRAS). The research confirms that hydrogen water is safe to be consumed. The Echo Flask currently has a valid certification status by H2 Analytics in conformance with IHSA and US EPA standards.
Registration # :24-0701-1-PB
Apple Health
Android Health
414921481593%would recommend this product
Reviews collected by ECHO Water from ECHO Flask customers.
Isabel
5 Stars
love love my hydra flask!
Jerome
Verified Buyer
Excellent
awesome device, I love it!
Kimberly
Verified Buyer
Amazing! So much more energy!
I have been suffering from low energy and brain fog. I noticed that I’m sharper mentally. Can absorb more information without fatigue and the need for an afternoon nap. I’m delighted at the changes. I think that I’m sleeping better at night as well.
