FAQ

Water with molecular hydrogen gas (H₂) dissolved in it. It looks and tastes like water. Hydrogen itself has no taste or smell.

In lab research it acted as a selective antioxidant, calming the most harmful free radical and leaving useful ones alone. Studies in people are smaller and mixed. Our Science page explains it and links every study.

It is water with dissolved hydrogen gas. As with any new drink, if you are pregnant or have a medical condition, ask your doctor first.

Within one hour, as it says on the can. Hydrogen starts to escape once the can is open, so the sooner you drink it, the more hydrogen you get.

Hydrogen is the smallest molecule there is and escapes easily. In a Japanese government test, two hydrogen waters sold in plastic bottles had none left when opened. Aluminium holds it in.

Still for everyday drinking. Sparkling if you like bubbles. Deuterium-Depleted is ultra-filtered water with less deuterium, a heavier form of hydrogen; research on it is still early. All three carry up to 5 ppm hydrogen.

4.5g with hydrogen, Himalayan salt (300mg), potassium (200mg), magnesium (100mg) and vitamins B1, B6, A, C and D. Zero sugar, 5 calories.

Tear open one sachet, pour it into 500ml to 1 litre of water, shake and drink within 15 to 20 minutes.

No. Hydrogen has no taste. HydroCan tastes like clean water.

Yes. Delivery is free on subscriptions and on orders of AED 200 or more after discounts. Otherwise it is AED 15.

Delivery is next day in the UAE.

We do not take returns. If an item arrives damaged, or we send the wrong item, contact us within 48 hours of delivery with a photo, and we will replace it or refund you.

Choose your cans or sachets and how often: every week, every 2 weeks or monthly. You save 15% on every delivery.

Yes, any time, with no fees. If you subscribed in HydroApp, open the Shop tab, then My orders. For a website order, email us.

Use the same email and password as HydroApp, or create an account. Sign in on the website to see your orders and download invoices, or at checkout to subscribe. Signed in to HydroApp with Apple? Your orders are in the app, and you subscribe there too, in the Shop tab. To pause or cancel a subscription, use HydroApp: open the Shop tab, then My orders.