Rx Vitamins Bio-C Powder Immune Supplement for Cats & Dogs, 4-oz bottle

By Rx Vitamins
Rated 4.75 out of 5 stars
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$14.40Chewy Price
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$18.00Chewy Price
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About This Item

  • Easy-to-administer powder that helps boost the immune system of your furry friend.
  • Contains bioflavonoids to increase the absorption and utilization of vitamin C in your pet.
  • Naturally buffered and reduces gastric distress commonly associated with high doses of straight ascorbic acid.
  • Features sodium ascorbate, which has a saltier, less sour taste than ascorbic acid.
  • Approved by the National Animal Supplement Council Seal (NASC).

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Top IngredientsVitamin C (Sodium Ascorbate), Lemon Bioflavonoids (24% Flavonones).Arabionogalactan, Shiitake Mushroom, Lutein Bioactive Carotenoid. Inactive Ingredients: Glycerin‚ Microcrystalline Cellulose‚ Magnesium Sterate And Water...L-Lysine, Larch Arabinogalactan (Larix Occidentalis Extract), Reishi Mushroom (Ganoderma Lucidum)...Vitamin D3 3000 IUActive Ingredients per ml (20 drops): A Proprietary Blend of Organic & Wildcrafted Herbal Extracts (1:4) 340 mg (Echinacea Leaf and Root, Astragalus, Pau D'Arco...
Breed SizeAll Breeds, Extra Small Breeds, Small Breeds...All Breeds, Extra Small Breeds, Small Breeds...All Breeds, Extra Small Breeds, Small Breeds...All Breeds, Extra Small Breeds, Small Breeds...Medium Breeds, Small Breeds, Large Breeds
LifestageAdultAdultAdultAdultAdult, Kitten, Puppy, Senior
Health FeatureImmune SupportImmune Support, Vitamins & MineralsImmune SupportVitamins & MineralsImmune Support, Anti-Fungal / Anti-Bacterial, Recovery...
Food FlavorUnflavoredUnflavoredChicken, PoultryUnflavored
Food FormSupplementSupplementSupplementSupplementSupplement, Liquid

Questions & Answers

3 Customer Questions


How many milligrams of vitamins c per scoop?
Answer by ChewyNov 18, 2021
Each scoop provides 445 milligrams of ascorbic acid (vitamin C) and 55 milligrams of sodium.

How many servings in the bottle?
Answer by ChewyNov 08, 2019
Each 4 ounce bottle of this product contains 210 scoops, and each scoop is 1/4 of a teaspoon. The servings will vary, based on your dog or cat's weight.

What are the milligrams of sodium?
Answer by ChewyNov 18, 2021
Each scoop provides 445 milligrams of ascorbic acid (vitamin C) and 55 milligrams of sodium.

ReviewsWrite a Review

4.8
Rated 4.75 out of 5 stars
8 Reviews
100%
Would recommend to a friend
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8 Customer Reviews



Rated 5 out of 5 stars
By Mark on Sep 26, 2022

Better than on-time delivery with a good product.

Talk about speedy customer service! Chewey is always prompt but this order came in day. Bravo! The vitamin C for our dogs is effective and helpful.


Rated 5 out of 5 stars
By Anon on Apr 2, 2022

Works for my cats

I have a cat with herpesvirus whose tendency is upper respiratory infections on a bad day and vicious snotballs on a good day. We've tried about every bandaid treatment recommended by the vet, and undecided to try this out because Vit C helped my health. Yall, this stuff is amazing. He sneezes way less often, and his mucus production is way down. No URI's since he started it. He cant detect any flavor when mixed with wet food, so he takes it well. Overall, I highly recommend


Rated 5 out of 5 stars
By Alex on Nov 27, 2021

Just keeps getting better

I had to buy this for my cat who has a whole host of GI issues, bladder crystals being one of them. The product has reduced the crystals in his bladder, has helped increase his thirst so he drinks more water (crucial in cats), and I believe has helped calm his tummy down. They've even improved the taste over the last couple months without losing the effectiveness of the product. I can't say enough good about it. Thank you!


Rated 4 out of 5 stars
By BioC on May 26, 2021

Bought for Urinary Tract Health

I think this is a good quality product - bioflavinoids are great antioxidants and this was something recommended for me to use while treating my dog for a bladder stone. Unfortunately he doesn't like the taste of it mixed with either his food or his favorite treat - sour cream!


Rated 5 out of 5 stars
By Loki on May 8, 2021

Excellent Product

Bio-C is an excellent way to get Vitamin C into my two dogs. It became extremely valuable when the entire household had COVID19. My two were sick but not as sick as they could have been or would have been. I keep them both on Bio-C to keep their immune systems functioning well.


Rated 5 out of 5 stars
By Rocky on Dec 6, 2020

Bladder crystals gone!

After one month of applying powder on kibble twice a day, my dogs stubborn bladder crystals are finally gone! As an added benefit, not that he had elevated counts but my dog's liver looked much better on ultrasound. Totally recommend!


Rated 5 out of 5 stars
By CarolynF on May 6, 2020

Fantastic supplement for recovering or ill dog

Our vet said even though dogs make their own vitamin C, at times of physical stress or fighting infections, they may not make as much as they need. We add Bio-C to our 8 yr old and 14 yr old dogs' food whenever they are sick or were recovering from surgery. A powerful antioxident, Bio-C was well tolerated (no spit up), and really makes a difference to how they're feeling and how they recover. My vet even has us add it (as well as Proviable) when the dogs are on antibiotics.


Rated 4 out of 5 stars
By sm10m on May 4, 2020

Seems to help, but cats don't like to eat it

Always difficult to give vitamins to cats, but mine needed Vitamin C. I bought this in the hopes they would like the flavor, but they didn't. I have to mix some of the powder with water (it doesn't dissolve well), put this into a syringe, and squirt it in the back of their throat. They don't like it, but they tolerate it. No barfing. And it is definitely helping them, so I am glad that I bought it for them.