Same H2 Universe quality, formulated for your cats and dogs. 60 veggie capsules of stomach-reaction molecular hydrogen — made in USA from globally sourced ingredients.
The same five H2 Universe benefits the human line is built around — rephrased for the way owners actually see them play out in a pet.
H2 has been studied for its role as a selective antioxidant in cells — a foundational input, not a fix.
May support an even energy curve and a settled mood in pets whose routine is built around a single daily ritual.
May help support healthy aging in senior pets — the most common reason owners add H2 to a daily routine.
May support recovery after long walks, training, or competition in active dogs and sport breeds.
Studied for its role in moderating the cellular side of the immune response. A complement, not a replacement.
These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult your veterinarian before starting any new supplement.
A daily molecular hydrogen supplement for your cat or dog. 60 veggie capsules per bottle. Each capsule contains calcium and magnesium from food-grade Magnesium-Dolomite, which reacts with the stomach's natural acid to release molecular hydrogen (H2) — sealed, where the gas can be absorbed directly through the stomach lining into the bloodstream.
A starting point — always confirm dosing with your veterinarian, especially for pets on medication, with chronic kidney disease, or on a prescription diet.
| Pet / Weight | Starting dose | Maximum | Notes |
|---|---|---|---|
| Cats (5–15 lb) | ½ capsule daily | 1 capsule daily | Open capsule; mix into wet food |
| Small dogs (10–25 lb) | 1 capsule daily | 2 capsules daily | Whole or opened |
| Medium dogs (25–50 lb) | 1–2 capsules daily | 3 capsules daily | Split AM/PM |
| Large dogs (50–100 lb) | 2 capsules daily | 4 capsules daily | Split AM/PM |
| Giant dogs (100+ lb) | 3 capsules daily | 5 capsules daily | Split AM/PM |
The same brand, the same chemistry, the same facility. Formulated for your pet's body weight, not yours.
A countertop or portable unit that dissolves H2 into water you pour into your pet's bowl.
The H2 is generated inside your pet's stomach, where the gas is absorbed directly through the stomach lining.
Subscribe and save when the pet line launches on our store. Get early access, subscribe-and-save pricing, and the first crack at the larger bottle sizes when they drop.
The questions owners actually ask. For a deeper look at the science, dosing, and safety, see the full pet hydrogen therapy guide.
At the dose range on the label, the safety margin is wide. Each capsule contains 33 mg calcium and 45 mg magnesium from food-grade Magnesium-Dolomite. The 2021 Qi et al. canine wound-healing study and the 2019 Japanese study on hydrogen gas inhalation in healthy dogs both reported no adverse events. Consult your veterinarian before starting any new supplement, especially if your pet is on medication, pregnant, nursing, or has a known health condition.
Dose by body weight. Cats (5–15 lb) start with ½ capsule daily, max 1. Small dogs (10–25 lb) start with 1 daily, max 2. Medium dogs (25–50 lb) start with 1–2 daily, max 3. Large dogs (50–100 lb) start with 2 daily, max 4. Giant dogs (100+ lb) start with 3 daily, max 5. This chart is a starting point — always confirm dosing with your veterinarian.
Made in the USA from globally sourced ingredients, in an FDA-registered, cGMP-compliant facility — the same facility and quality system that produces the human True Nano H2 line. H2 Universe, LLC is based in Granbury, Texas.
Most dogs will swallow a capsule whole if it's hidden in wet food, cheese, or a pill-pocket treat. For cats, open the capsule and mix the powder into a small amount of pâté-style wet food. The capsule is veggie-cellulose and dissolves in the stomach. The H2 is generated once the powder reaches stomach acid, so food doesn't interfere with the reaction.
A hydrogen water machine dissolves H2 into water that you pour into your pet's bowl. Most of the gas escapes into the air within minutes. The True Nano H2 capsule generates H2 inside the stomach, where it is absorbed directly through the stomach lining. No machine, no electricity, no lost gas, and a more consistent daily dose.