Natural Science - Vitamin C

Natural Science Vitamin C supplement is a hay-based, high-fiber supplement containing the essential stabilized vitamin C that guinea pigs need, and other animals benefit from during times of stress, illness or recovery.

  • Nutrition
  • Feeding
  • Details
  • Testimonials

Guaranteed Analysis

Crude Protein (min)10.00%
Crude Fat (min)5.00%
Crude Fiber (min)9.00%
Crude Fiber (max)12.00%
Moisture (max)8.00%
Ash (max)8.00%
Calcium (min)0.50%
Calcium (max)0.70%
Phosphorus (min)0.50%
Copper (min)9 mg/kg
Ascorbic Acid (Vitamin C) (min)25 mg


Timothy grass, barley flour, oat groat flour, cane molasses, l-ascorbyl-2-monophosphate (vitamin C), flax seed meal, brewers dried yeast, guar gum, fat product, mixed tocopherols (preservative), rosemary extract

Directions: When changing your pet's daily regimen, consult your veterinarian.

Rabbits, Guinea Pigs, ChinchillasAll Weights1 tab per day
Rats, DegusAll Weights1/4 tab per day

For all other species, consult Oxbow or your veterinarian.  When adding supplements to your pet's diet, always consult your veterinarian.

Expiration: 24 months unopened (by Best By date on bottle). Once opened, use within 60 days.

Guaranteed Intake

Feeding a tablet guarantees that pets receive the entire guaranteed amount of the supplement necessary for optimum health. Supplements lose their potency when added to water. Animals may refuse or reduce the amount of water due to the taste of a water soluble supplement, which may lead to other health problems as well. Feeding a tablet, on the other hand, lets pet owners take the guesswork out of supplements.

"I am a small retail business that just started carrying your new Natural Science products. It has been received real well by our small animal community. I wanted to share a telephone call I received yesterday. We have a bunny rescue group that buys Oxbow products from us.  I gave them a bag of the new pellets and also some of the supplements to try on their bunnies.  They have some older bunnies that need some extra TLC in their group. Cathy from Hoppsy-Floppsy Bunny Rescue called me to tell me after two weeks on the new Natural Science products, their bunnies coats look fabulous, their spirits are better and they are more active!  They LOVE the new products." -Debbie Ringer, Patsy's Pet Stop, Totowa, NJ 

Click here to submit a testimonial!

4.75 out of 5.0 based on 4 reviews
  1. bekkaDecember 28, 2014
    tommy loves these
    Rating 5 out of 5
    My guinea pig is very picky but he loves them they are a little pricey but worth the money
    8 out of 10 people found this helpful.
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  2. Laura VinceletteOctober 24, 2014
    Vitamin C supplements
    Rating 4 out of 5
    My herd of guinea pigs love the Vitamin c supplements. Just wish they came in bigger volumes of tablets!
    10 out of 10 people found this helpful.
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  3. SydneyFebruary 2, 2014
    Great product
    Rating 5 out of 5
    I am currently feeding this product to a 2 month old guinea pig. She loves it! She is so excited to eat these hay tabs and thinks they are the absolute best. This is a good alternative to feed to an animal who is not fond of veggies just yet or who has problems with soft stool but still needs the vitamin c content (guinea pigs need this). I will be buying more!
    7 out of 7 people found this helpful.
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  4. CarlyJanuary 27, 2015
    Healthy & Great!
    Rating 5 out of 5
    Since guinea pigs cannot produce their own vitamin C, these are very important to have. My 2 year old piggy used to be on the original Oxbow C tablets, but they were discontinued and now they have the hay tablets. I give one to my pig every morning along with her food and she loves them! It is good to know that she is getting the vitamins that she needs!
    9 out of 10 people found this helpful.
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