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Vitamin C by SmartPak
SmartPak Equine — Item #17176
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Natural antioxidant support

  • Many horses need more vitamin C than they can make themselves or get from feed & forage
  • This formula provides 7,000 mg of pure vitamin C
Many horses need more vitamin C than they can make themselves or get from feed and forage – especially seniors, those in heavy work, those with respiratory conditions, and any horse that has been stressed. Vitamin C by SmartPak contains 7,000 mg of pure vitamin C with natural, sugar-free sweeteners. Your horse will love the fresh orange flavor!

View our Antioxidant Supplement Comparison Chart


Guaranteed Analysis per 7.4 g
(Maintenance Dose = 1 scoop (7.4g) daily)
  • Ascorbic Acid (Vitamin C)
    7,000 mg
Ingredient Statement:: Ascorbic Acid, Magnesium Silicate, Natural Flavor (Orange).


Instructions for Use:
Horse Weight Recommended Amount
Under 500 lbs. 0.5 scoops
500 – 1000 lbs. 1 scoop
1000 – 1500 lbs. 1 scoop
Over 1500 lbs. 1.5 scoops
Feeding Instructions: Feed 7.4 g daily (1 scoop = 7.4 g)

Clinical Research

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    out of 5
    94% of customers would recommend this product to a friend!
    Tell us what you think!

    The reviews provided on this website represent the experience of the individual posting the review. We do not adopt, edit, or endorse any of the submissions posted within the reviews section. Rather, the reviews are part of an online community of animal owners that desire to share their particular experience with other individuals. These reviews are not a substitute for discussing the health of your animal with a veterinarian.

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    Vitamin C by SmartPak is rated 4.7 out of 5 by 36.
    Rated 5 out of 5 by from Vitamin C I bought thistwo months ago and have seen great results.
    Date published: 2014-09-28
    Rated 5 out of 5 by from smells great Has a very fresh smell. I always add this to my cough free when giving it to my horse
    Date published: 2014-07-10
    Rated 5 out of 5 by from Good supplement I just wanted some extra immune and muscle support for my gelding so I added vitamin C to his Pak. He eats it right up.
    Date published: 2014-06-28
    Rated 4 out of 5 by from Tasty and works well My mare needs extra Vitamin C for her immune system and for breathing and this stuff did work well for her. It did help her as far as being snotty and was good for her immune system in fighting an infection recently. I have since put her on another supplement but I highly recommend this supplement as the taste seems to be great and serves it's purpose but due to having an easy keeper with little grain pellets are easier for me than powders.
    Date published: 2014-05-14
    Rated 5 out of 5 by from The Best I used this product before on a Draft mare with cancer.The tumor disappeared and her lymph nodes returned to normal. From a "she has three months" diagnosis to a happy, healthy two years. I'm using it now along with the immune system stimulants on my 32 year old Thoroughbred with a brain tumor and the improvement is 90%
    Date published: 2014-03-28
    Rated 5 out of 5 by from My horse would eat it plain!! Great product not only for supporting the immune system of a horse who is trailered 2+ times a month, but also good for an OTTB running training's ligaments and tendons. 
    Date published: 2013-12-10
    Rated 4 out of 5 by from I heard that after a certain age horses do not produce Vitamin C anymore and it is essential to their livelihood to have it in their systems like humans. Since it tastes so good its my pleasure to add it to my horses bucket. Thanks SmartPak
    Date published: 2013-08-13
    Rated 4 out of 5 by from
    Date published: 2013-06-16
    Rated 5 out of 5 by from Vitamin C This Vitamin C smells great and is very palitable. My horse eats it with no problems. He had choke and then got an infection from being "tubed", so I was trying to help boost his immune system.
    Date published: 2013-02-28
    Rated 5 out of 5 by from
    Date published: 2012-10-11
    Rated 5 out of 5 by from Great Product!! Vitamin C was recommended by my vet for two barrel horses with respiratory issues. I love the SmartPaks!
    Date published: 2011-07-05
    Rated 5 out of 5 by from Perfect for my older horses With my two old(er) geldings across-the-board multivitamins/multiminerals are OK, but they do not address the greatly increased need for fairly high doses of Vitamins C and E as well as Magnesium. They seem to like the taste of Vitamin C by SmartPak. They have been getting it for so long that they'd probably miss it, if I were to leave it out of their feed (and by the way, do not ever just quit giving Vitamin C, but taper it down; apparently quitting it from one day to the next is quite hard on the horses' fragile system.)
    Date published: 2011-06-25
    Rated 5 out of 5 by from boost the immune system inexpensive palatable product to help boost the immune system. Easy to feed.
    Date published: 2011-05-20
    Rated 5 out of 5 by from My horses love it! All my senior horses get supplemental Vit C and even the most finicky one likes the flavor. He must know the difference, because occasionally I try to mix other Vit C powder from the health food store in his grain, and he not only won't eat it, he makes his point by kicking the bucket with its content over. So, this here is not really my opinion but his.
    Date published: 2011-05-02
    Rated 5 out of 5 by from Great for joints After some research I put my upper level competition horse on SmartC and SmartMSM - he's never moved better! Love the Smartpak exclusive SmartSupplements - great value for your money! Thanks Smartpak!
    Date published: 2011-03-23
    Rated 5 out of 5 by from Smart C Best bang for the buck. My picky mare eats it. We put her on Vitamin C two years ago for heaves per vet. She is 1000 lbs and gets 10,000mg daily. She has been fine since and am thankful for Smart Paks! Only way to buy supplements. Other similar supplements are approx $60 for 2 months.We do horse rescue along with our own animals and it is nice to always have fresh products when we need them. Also nicely stacked boxes for each horse and no containers all over the place.Thank you Smart Paks! :)
    Date published: 2011-01-21
    Rated 5 out of 5 by from Sold on SmartC I proactively give it to my horses, particularly my yearling Friesian who tends to be sensitive to stress, whenever we have a weather change. W/ the recent rains, he was on it for 5 days straight. Guess what?! Two weeks later and he has no cold, no colic; he is happy and healthy w/ no signs of stress.
    Date published: 2011-01-04
    Rated 4 out of 5 by from He eats it I wanted to add a vitamin C supplement for my older TB gelding to hopefully help boost his immune system. It did it's job and he recovered well. I've taken him off this supplement now, but will use it in the future if I have a need for it.
    Date published: 2010-12-05
    Rated 5 out of 5 by from Great product My horse had bladder stone surgery and it was recommended that he be put on Vit C to acidify his urine to prevent stones. I searched serveral sites and found smart pak and read the reviews on the Vit C. It was highly recommended and had very good reviews. Once I recieved the product I was very impressed, I sprinkled some on my hand and my horse licked it off of my hand!! Nothing like a product that the animal will readily consume. Im sold. thanks smart pak
    Date published: 2010-09-14
    Rated 4 out of 5 by from Good supplement I used this with smartMSM since the research I read recommended MSM and vitamin C for joints. My horse ate it no problem, but I did switch her from this combo to the smartpak senior now that they offer the herbfree senior joint supplement.
    Date published: 2010-08-30
    Rated 4 out of 5 by from Giving it a Try Too soon to tell but horses seem to like the taste and both are not too fond of a powder supplement.
    Date published: 2010-06-10
    Rated 5 out of 5 by from Natural C more fully metabolized One of our vets recommended natural Vitamin C for a horse recovering from cellulitis. In my research of "natural" Vitamin C, I found it is better absorbed and metabolized therefore more effective. Smartpak was one of the few that offered the product.It is so easy to work with Smartpak and cost effective in so many ways from purchase, my time, my labor costs, efficacy, etc...
    Date published: 2010-04-01
    Rated 5 out of 5 by from Great Smell!! My vet suggested that i put my pony on a vitamin c supplement to help with the rain rot he keeps getting so i tried smartpak brand and my horse eats it up with no problems. It smells really good!!
    Date published: 2010-03-16
    Rated 5 out of 5 by from Bang for buck Maximum mg for the money
    Date published: 2010-02-23
    Rated 1 out of 5 by from Waste of money! No good! Horse would not eat it no matter how I tried t give it to her.
    Date published: 2010-02-21
    Rated 4 out of 5 by from
    Date published: 2010-01-19
    Rated 4 out of 5 by from
    Date published: 2009-11-05
    Rated 5 out of 5 by from Can't Go Without... Vitamin C is something none of my horses go without at any time of the year. Between travelling, showing, training, and the elements, there are plenty of things to wear my horses immune systems down. They get this year round and since I started they hardly even get the sniffles and never seem run down. I love that it's a very small dose, they don't even know it's in their feed. And very affordable!
    Date published: 2009-10-30
    Rated 5 out of 5 by from Good for the money I am currently using this product for my horse's eyes, rather than his immune system; although I'm pretty sure that I am getting the best of both worlds. It seems to be doing the trick, there is less of the "oh my gosh, the boogie man is going to get me!" scenarios; it almost seems to be helping him think more clearly. I'm no vet, but that's my opinion. I only wish it came in a pellet form!
    Date published: 2009-10-20
    Rated 5 out of 5 by from Smells Delightful! I just started my older mare on this product so too soon to tell anything, but my goodness it smells wonderful! Tastes good too (I couldn't resist) and the mare gobbles it up.
    Date published: 2009-10-15
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