
$69.95
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Ultimate H2 is a fizzing hydrogen tablet from Gundry MD that you drop into a glass of water. Each Mixed Berry tablet combines a 400 mg magnesium-based H2MG React blend, which releases molecular hydrogen, with 75 mg of citicoline and 100 mcg of vitamin B12. It is an easy daily habit with no caffeine, but the evidence for hydrogen water is still early and plainer tablets deliver hydrogen for less.
See current pricing and bundle options
Ultimate H2 is sold directly through Gundry MD’s official website. Third-party Amazon listings for Gundry MD’s hydrogen tablets also exist, sometimes under slightly different product names, so double-check the listing before buying there. We could not confirm current QVC availability. Because retail listings and pricing can change, the Gundry MD website remains the most reliable place to check.
| Option | One-Time Price | Subscribe & Save |
|---|---|---|
| Single Box | $49.95 | $44.95 |
| 3-Box Bundle | $134.85 | $119.85 |
| 6-Box Bundle | $254.70 | $227.70 |
Prices reflect Gundry MD’s current checkout pages at the time this review was last updated and are subject to change. See the Bundle Savings section below for the full per-box breakdown and guarantee details.
Based on the ingredients, pricing, and evidence covered in this review, here’s a straightforward look at who Ultimate H2 is likely to suit and who might want to look elsewhere.
Ultimate H2 may be worth it if you:
Ultimate H2 may not be worth it if you:
Bottom line: Ultimate H2’s main appeal is convenience and formulation breadth, combining molecular hydrogen with B12 and citicoline in one tablet, rather than proven superiority over simpler or cheaper hydrogen products. It’s a reasonable pick for someone who wants that combination from an established brand, but not the only credible way to add molecular hydrogen to a daily routine.
Ultimate H2 is Gundry MD’s molecular hydrogen supplement, an effervescent tablet built around a magnesium-based H2MG React blend that releases hydrogen gas when dropped in water, plus small doses of citicoline and vitamin B12. Molecular hydrogen has been investigated for potential biological effects, including antioxidant and anti-inflammatory activity, but human evidence remains limited and developing. That evidence relates to molecular hydrogen generally, not to Ultimate H2 specifically, no independent human studies on this product have been published, and it should not be treated as proof that Ultimate H2 itself produces the same outcomes. Gundry MD adds the citicoline and B12 to round the formula out toward energy and mental clarity rather than hydration alone.
Non-ionic elemental magnesium with DL-malic acid and tartaric acid. It reacts with water to release molecular hydrogen gas. The panel lists 80 mg of magnesium per tablet.
Limited evidence · early human research on hydrogen waterA source of choline that brain cells use, included for focus and mental energy.
Moderate evidence · small human trialsSupports red blood cell formation and energy metabolism. The label lists 4,167% of the Daily Value; the body absorbs only a fraction of a large single dose.
Strong evidence · for correcting a deficiencyAmounts from the Ultimate H2 Supplement Facts panel (1 dissolvable tablet; 30 tablets per box). Other ingredients: dextrose, citric acid, natural flavours.

90-day money-back guarantee • Affiliate link • Checkout on Gundry MD’s site
Check current pricing, bundles and availability
Ultimate H2 comes in a Mixed Berry flavour. It fizzes for about two minutes with a mild, slightly tart taste from the malic and tartaric acid, then dissolves fully. No caffeine or artificial sweeteners.
Drop one tablet into 10 oz of water. It will fizz for about two minutes while the molecular hydrogen releases, then drink once the fizzing stops. Gundry MD’s label recommends 1–2 tablets daily.
Gundry MD’s label recommends 1–2 tablets daily, each dissolved in water; there’s no established benefit to exceeding the labelled serving, and doing so would also push magnesium and B12 intake beyond what’s been evaluated. The magnesium in each tablet (roughly 80 mg) is a relatively modest amount of magnesium for most healthy adults, but anyone with kidney issues or taking magnesium-affecting medication should check with a doctor first. As with any supplement, people who are pregnant, nursing, on medication, or managing a health condition should talk to a healthcare professional before starting Ultimate H2.
Searched: FDA recalls, FDA warning letters and FTC cases.
Only $1.67 per serving at the one-box price, less than a daily coffee.
Ultimate H2’s single-box price works out to about $1.67 per serving, similar to other premium hydrogen tablets like Vital Reaction and pricier than budget options such as Drink HRW’s 30-count tablets. Bundles and subscriptions bring it down to $1.27 per serving.
Protected by Gundry MD’s 90-day money-back guarantee.
$1.67 per day
$1.50 per day
$1.42 per day
$1.50 per day
$1.33 per day
$1.27 per day
| Product | Our rating | Price | Best for | Action |
|---|---|---|---|---|
| Ultimate H2This review | 4/5 | $49.9530 tablets | A caffeine-free hydrogen tablet with added B12 and citicoline | Check Price → |
| Drink HRW Rejuvenation | 4/5 | $26.9930 tablets | Higher claimed hydrogen (up to 12.4 ppm) for less, but no B12 or citicoline | Not yet reviewed |
| Vital Reaction | 3.5/5 | $59.5060 tablets | A simpler hydrogen tablet taken once or twice a day | Not yet reviewed |
$26.99 for 30 tablets. Higher claimed hydrogen concentration (up to 12.4 ppm per 500 mL) and a lower price, but no added B12 or citicoline.
$59.50 for 60 tablets, taken once or twice a day. A simpler hydrogen tablet (8 to 10 ppm claimed) without the B12 or citicoline.
$49.97 for 90 tablets ($19.97 for 30). A budget option with a lower claimed hydrogen concentration (up to 8 ppm).
This review includes affiliate links. We may receive a commission if you purchase through them at no extra cost to you. Always consult your healthcare provider before beginning any supplement.
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