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Product Overview

2,500 IUs of vitamin E

Recent research has prompted leading equine nutritionists to suggest increased dietary intake of Vitamin E. E-5000 is a highly concentrated source of Vitamin E with 5,000 IUs per ounce.

Learn More about E-5000
  • 2,500 IUs of vitamin E per 1/2 oz. serving

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Key Ingredients


Supplement Facts

Ingredient Name Amount Per Serving
Ingredient Name Amount Per Pound

Ingredient Details


Weight Recommended Amount Loading Amount

How the Ingredients Work

Supporting Success

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    We take the guesswork out of serving sizes, ensuring your horse gets the right amount, every time. SmartPaks have airtight seals to ensure that your horse always has the freshest supplements available. Your horse is unique and his supplements should be too. Choose from over 230 supplements to get everything he needs, nothing he doesn't. We print your horse's name on every Pak so there are no mix-ups, making feeding time fast, accurate and easy! Unlike most buckets, SmartPaks are made from recycled plastic and can be recycled again! We'll send your SmartPaks on time so you never run out, with total flexibility and no commitment. Plus all SmartPaks over $40 receive free ground shipping.


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.

SmartPak customers are some of the most conscientious animal owners around. We encourage you to share your experience with the products we sell to help fellow customers to make informed choices for their animals. We do not edit these reviews in any way - they are direct customer-to-customer communication. We do monitor reviews for positive and negative feedback, and use this feedback to improve our selection as well as sharing feedback with product manufacturers to help them improve their products. Please note that we recommend consulting your vet with serious health issues.

E-5000 is rated 4.5 out of 5 by 45.
Rated 5 out of 5 by from Vitamin E-5000 is a great product This is the second time I have purchased this product for my horses to help build their topline and to help one horse that is recovering from EPM>
Date published: 2023-10-26
Rated 2 out of 5 by from NOT Natural Vitamin E so generally useless While I generally like Vita-Flex products, I am disappointed with this one. Vitamin E is an important antioxidant, especially for horses with Shivers like my draft horse. I bought this product because the name E-5000 suggests that it contains 5000 IU of Vitamin E per serving. It does not, it contains 2500 IU per serving, you have to double it up to get to the 5000 IU threshold. In addition, Vita-Flex is careful to avoid mentioning the source of the Vitamin E as well as the fact that it is NOT natural Vitamin E, it is synthetic. Synthetic E is far less bioavailable than natural E, making this product virtually useless for my boy, who NEEDS 10,000 IU of Vitamin E per DAY to keep his Shivers symptoms at bay. Some studies suggest that dl-alpha-tocopherols (the synthetic Vitamin E), are not absorbed AT ALL, while others have suggested nominal absorption as low as 1:100 of natural Vitamin E). In other words, put your hard-earned money toward a Vitamin E supplement that will actually benefit your horse's body, like Elevate or SmartSimple Vitamin E, or Nano-E. Just make sure whatever you choose is natural (look for d-alpha-tocopherols specifically)! My horse suffered a backslide because I tried to save a few bucks a month. Please don't make the same mistake I did at your horse's expense!
Date published: 2023-06-26
Rated 1 out of 5 by from Not effective I had a horse who was not technically deficient but came back around 210 ug/dL on his blood work which is still on the lower end of normal. I added one scoop of this to his smartpak and after two months we retested and got the same result. Although this is advertised as palatable, I think the horse may be eating around the powder and not getting the full dose. Either that or it just doesn’t work.
Date published: 2023-03-08
Rated 1 out of 5 by from Not natural vitamin E, this is from synthetic E, Look closely at the ingredients. The source of vitamin E is synthetic not natural. When it is synthetic is not very bioavailable. This type may be less expensive but why spend money on a supplement when it will not be effective. Take a look at UC Davis write up on vitamin E for equine.
Date published: 2022-03-06
Rated 5 out of 5 by from Palatable and easy to use! Purchased this for a horse with EPM. Easy to double dose and picky eater approved!
Date published: 2020-11-11
Rated 4 out of 5 by from I have been using this on my horses for 2 yrs now it helps them keep top line on.
Date published: 2020-08-19
Rated 5 out of 5 by from Working great !! [This review was collected as part of a promotion.] Have a older gelding that was haveing trouble getting around,had been using MSN for a time and that helped some . A friend told me about E-5000, started giveing it to him and within a week noticed a big improvement. A good product is worth the try.
Date published: 2020-06-04
Rated 5 out of 5 by from Love Love the convenience that smart park offers with setting up future shipments.
Date published: 2020-01-17
Rated 5 out of 5 by from Readily eaten My horse had no problem eating this with his daily feed ration.
Date published: 2019-07-29
Rated 5 out of 5 by from Absolutely Love! Adding that extra vitamin e has made a huge difference in his over all well being best decision !
Date published: 2019-05-31
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