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“Everything in the store is tested by me and cat-approved, so shop with confidence!”

B12 For Cats (1 fl. oz.) is THE product you didn't know your cat needed! It's a natural, bioavailable, non-synthetic vitamin B12 in liquid form and supports the health of your cat’s immune system, nervous system, digestive system & cognitive function. This B12 supplement is superbly more effective to cats than its synthetic counterpart, cyanocobalamin, because it is absorbed more readily by the body. It's wonderful for senior cats who just don't absorb B12 as they used to in their younger years. Get your cat on the road to excellent health by adding B12 For Cats into their daily diet! Made in the USA.

Helps with:

  • Immunity Health
  • Kidney Health
  • Nervous System Health
  • Pancreas Health
  • Gastrointestinal Health
  • Cognitive Health
  • Increases Appetite



    • Keep refrigerated after opening to extend the life of the product
    • Adult cats: 1/2 (.5) ml dose once per day (250 mcg)
    • Kittens: 1/4 (.25) ml dose once per day (125 mcg)
    • Safely double the dose for cats with chronic illness.
    • B12 can be administered in food or water, though it’s recommended in food to get the full dosage.    *Not a topical formula so do not spray or mist
    • Safe to use in conjunction with other holistic solutions.

    Active ingredient: 250 mcg methylcobalamin Other ingredients: vegetable glycerin, purified water, citric acid No fructose, fillers or artificial ingredients Serving size .5 ml - Approx. 60 servings per container Side Effects: Improved appetite, increase in energy and vitality, improvement in cognitive and neurologic systems, weight gain in malnourished cats. Response times may vary. Safe for cats and dogs.


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    Customer Reviews

    Based on 183 reviews
    Bee (Lake Worth, US)
    Thank you!

    I have MANY cats and they all had no problem eating their wet food with the B12 on top! I’m hopeful to see how much it will help their health but I fully trust Jackson Galaxy and his expertise and compassion for cats. I am already very pleased with the product. :)

    Vettegirl (Durham, US)

    I have 3 cats aged 15 - 16 yrs which I started on the B12. All the cats seem more alert and are definitely way more playful and running around.

    Susan Reif (Pahrump, US)

    Excellent. My two 18 year old cats have more energy and are more alert. I will continue it!

    Molly Wuertz
    Love this product!

    I have a one year old cat that we recently adopted with a very sensitive stomach. We suspect IBD, although it has never officially been diagnosed.She has been through so many treatments at the vet already and even had to be hospitalized once. The vomiting would get so severe. We thought at one point we were going to lose her. We finally were able to change her diet and I started giving her the B12 daily. What a difference! She hasn't had any flare ups since we started it, and has really gained her appetite back. We've also been giving it to our 6 y/o cat and it has given him a lot more energy. I will definitely continue to use this product! Thank you!

    Cathy Protain (Hubbard, US)
    Haven't Had Long Enough

    I only rec'd the order 8 days ago. My cat is 17 years old & is now a very picky eater. Would be nice if you would wait to ask for a review like the next month out. So far, so good, but I have no idea if it is doing anything for him as of yet.