Typically, hydrogen-infused water remains effective for 1–2 hours after a cycle is complete. For optimal benefits, we recommend drinking it within 10–15 minutes of infusion.

Your Hydrotech bottle uses a process called electrolysis, where an electric current splits water molecules (H₂O) into hydrogen (H₂) and oxygen (O₂). The hydrogen gas is then dissolved into the water, creating hydrogen-rich water.

Yes. Your Hydrotech bottle is battery powered and charges via USB-C. We include a charging cable in every box.

Cycling the bottle multiple times can increase the hydrogen concentration slightly. However, a single cycle already produces a significant level of hydrogen, and repeated cycles back-to-back could result in bottle damage.

Yes, a slight ‘pop’ when you open it is completely normal — it’s simply the release of pressure from the hydrogen gas. Hearing that pop is a good sign that the lid was sealed correctly.

When you choose Subscribe & Save on Refresh+ Cleaning Tablets, a fresh supply is delivered to your door automatically on a repeating schedule — so your bottle stays clean without you having to remember to reorder. You save on every subscription order versus buying one-off.

Yes. Your subscription can be cancelled or managed any time after your second order has been delivered. There are two easy ways to do it: tap the account icon in the site header and log in with your phone number, or open any order confirmation email and click the purple “Manage my subscription” button. From there you can pause, skip, reschedule or cancel.

Not at all. Refresh+ is available as a one-time purchase as well. Subscribe & Save is simply there if you’d like the convenience of automatic refills and a lower price per order.

We ship worldwide. Standard rates by region: New Zealand & Australia $5 (free express over your cart threshold), United States US$6, Canada $7, Singapore $7, UAE $7. Your exact rate and currency are always confirmed at checkout based on your delivery address.

Orders are dispatched on express, fully tracked services. New Zealand and Australia typically arrive within a few business days; international orders generally arrive within 5–8 business days depending on your location and local customs. You’ll receive tracking the moment your order ships.

For most destinations, no extra action is needed. Depending on your country’s rules, some international orders may attract local import duties or taxes on delivery, which are set by your customs authority and aren’t controlled by us. If you’re unsure, your local customs office can confirm what applies.

Every Hydrotech bottle is backed by a 12-month warranty covering manufacturing faults and defects in normal use. If something isn’t working as it should, get in touch at support@hydrotechnz.com and our team will sort out a repair or replacement.

Yes — we stand behind every bottle with a 30-day money-back guarantee. If you’re not happy within 30 days of receiving your order, reach out to our team and we’ll help you with a return or refund.

Just email support@hydrotechnz.com with your order number and a short description (a photo or video helps for warranty claims). A real person on our team will guide you through the next steps.

We accept all major credit and debit cards, plus express options like Shop Pay, PayPal, Apple Pay and Google Pay. Buy-now-pay-later is available in selected regions at checkout. Your total is always shown in your local currency.

We process orders quickly to get them to you fast, so if you need to make a change, email support@hydrotechnz.com as soon as possible with your order number. If it hasn’t shipped yet, we’ll do our best to update or cancel it for you.

Confirmation emails are sent automatically right after checkout — it’s worth checking your spam or promotions folder first. If it still hasn’t arrived, email support@hydrotechnz.com and we’ll confirm your order and resend it.

Hydrotech is a New Zealand founded and owned brand, and we now ship worldwide, including across Australia, North America, Asia and the Middle East. Wherever your order is going, it comes from the same team, with the same dedicated support and the same 12-month warranty behind every bottle.

Cheaper alternatives use lower-quality materials that lack durability and effectiveness. They’re often built with thin, fragile glass and weaker ioniser bases that don’t actually produce an effective level of hydrogen. Investing in Hydrotech is a quality guarantee — better performance, longer life, and real results you can feel.