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E-Se-Mag Pellets

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Product Overview

Support for sore muscles

E-Se-Mag Pellets are formulated to support sore muscles. E-Se-Mag Pellets contain a unique combination of  1,000 IUs vitamin E, 2 mg selenium, and 3,000 mg magnesium per serving. As reported in the Horse Journal, vitamin E and selenium supplementation, along with magnesium in the ration, may aid in nutritional support in the presence of sore muscle problems.
  • 1,000 IU of vitamin E, 2 mg of selenium & 3,000 mg of magnesium

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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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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-Se-Mag Pellets is rated 4.8 out of 5 by 41.
Rated 5 out of 5 by from Good for horses on low or no forage My horse does not play well with others, so he has to go out by himself, a situation with which he is very happy, thankfully. However, he doesn't get the nice, lush pasturage the other horses get, as he is in a smaller solo paddock. He gets very high quality hay out there and alfalfa in his stall, but after he'd been without good forage for a while I was worried he wasn't getting enough Vitamin E. My horse is fat, shiny, and bursting with health- he is a jumper and has always felt ready to jump big fences. However, I had noticed he was much more sensitive to being brushed over the past year, when his pasturage changed to very little grazing. The things is that when I added this supplement very quickly he was suddenly back to not caring about being curried. So, I don't know if the Vitamin E and/or Selenium and/or Magnesium helped, but it is the only thing I changed and I am happy to have my mellow dumblood back again! He likes it and eats it up, although if I gave him a cheeseburger he would probably eat that, so his hooves up review may not be worth much, but I'm the one paying for it and it seems to be working, so we will keep him on it!
Date published: 2018-07-27
Rated 5 out of 5 by from Love this product I bought this for my mare who has PSSM. All of this products ingredients have the highest and easiest forms (to digest) and amounts of each that a horse with PSSM needs. Not only that but my mare seems to love the taste as well which was a big plus in my book.
Date published: 2018-03-08
Rated 4 out of 5 by from Juries still out but so far so good I bought this to help my OTTB gelding with sore back issues. I haven’t been riding much so I’m not sure about that yet. However, I have noticed he’s more focused during his ground work and although he’s a pretty calm horse he just seems more settled. I’ll review again once he’s working more but for now the product seems hopeful.
Date published: 2018-01-17
Rated 5 out of 5 by from Best vitamin E, SELINIUM, and MAGNESIUM mix ! Hands down the best palatable mix for all New England Equines ! All our horses in this region lack it, this product is very affordable and in
Date published: 2017-10-05
Rated 5 out of 5 by from Great Results My mare suffered a hind leg injury that resulted in very tight hip muscles. She started back to work after a full recovery and is doing fantastic. She's a picky girl and loves the taste!
Date published: 2017-09-11
Rated 4 out of 5 by from Apparently flavorful. Good results. I bought this product for a horse recovering from EPM...seems very effective.
Date published: 2017-07-17
Rated 2 out of 5 by from Just alright I was excited to start my horse on this product after the suggestion from my chiropractor. My mare was compensating on her left hind for an injury to her right hind, and the chiro suggested adding magnesium to help relax her muscles. I was excited to see a change in her mare-tude as well with the added magnesium, and a shiny coat with the vitamin E. However, after being on this supplement for over a month at the standard dosage, I have not seen much of a difference. I will most likely go for Quiessence next time.
Date published: 2017-03-14
Rated 5 out of 5 by from Great combination This product is a combination of of the supplements I want to feed my horse all in one corntainer and my horse eats it without any issues
Date published: 2017-02-15
Rated 5 out of 5 by from This product allowed my horse to recover quickley My horse was having problems with muscle soreness and response. He has been on his Smart Pack for about one month and difference is huge. I would recommend this product for any horse in training and competition
Date published: 2016-11-14
Rated 5 out of 5 by from Makes a difference! I fed this to two horses with metabolic syndromes who do not have access to pasture. It maintained their blood levels within normal levels.
Date published: 2016-08-13
Rated 4 out of 5 by from Convenient The way they package these is so convenient! If I go away for a few days and someone else has to feed my horses, it's so easy for them to grab a strip and dump into their mash buckets!!
Date published: 2016-07-27
Rated 5 out of 5 by from Great product A wonderful product with positive results! Palatable and fresh!
Date published: 2016-04-25
Rated 5 out of 5 by from Must taste good Added a month ago to my 30 yr olds smartpak. Too early to see if its helping, but we hope so ;) I must taste good. This guy is not find of grain :)
Date published: 2016-02-13
Rated 5 out of 5 by from Great product I have been giving this to my very spooky horse since last spring. I am a true believer of this product. He is definitely so much more relaxed and rideable.
Date published: 2015-11-18
Rated 5 out of 5 by from Love this combo! I bought this over a month ago and I'm happy with the results!
Date published: 2015-09-23
Rated 5 out of 5 by from Doing well ! I've been using this on two different horses as a preventative because both are possible PSSM candidates and the NW hay is low in selenium. They gobble it up.
Date published: 2015-09-23
Rated 5 out of 5 by from good description Great to have both great ingredients in one scoop!
Date published: 2015-06-26
Rated 4 out of 5 by from Already see improvement! I started my 19 year old Arabian mare on this a few weeks ago and I'm already noticing an improvement. She is very sensitive and "thin skinned" but in a flinchy/sore type of manner. Since starting this supplement, there has been a noticeable improvement in her sensitivity. It's also very palatable - she is super picky, and will eat these pellets alone, not mixed with anything.
Date published: 2015-05-14
Rated 5 out of 5 by from great product My mare's back has been sore due to fusing hocks, so I started her on this hoping it would help. I saw improvement within three days of starting her on it! It's got a great price too.
Date published: 2015-04-10
Rated 5 out of 5 by from Easy to feed I have been feeding the equivalent product in powder form for years and only tried the pellets when the powder was no longer available. The pellets are easier to get my horse to eat, so I am very satisfied.
Date published: 2014-11-25
Rated 5 out of 5 by from Eased Stall Rest Anxiety My trainer recommended E-Se-Mag Pellets for my stall-rest bound OTTB and his restlessness at not being able to be turned out. Immediately after starting him on the pellets, I noticed my horse acting much calmer and not as reactive. I am continuing to his use the supplement during his rehabilitation and am finding him far less skittish than I ever expected after four months of stall rest.
Date published: 2014-11-12
Rated 5 out of 5 by from Excellent product!! I am very satisfied with all MVP products. My horse loves the tastes of them and looks terrific
Date published: 2014-11-05
Rated 5 out of 5 by from Excellent Product!! I bought this product for my PSSM horse. Hes a picky eater, he eats this right up and is doing great on it.
Date published: 2014-10-09
Rated 5 out of 5 by from Best way to ensure the right amount I bought this product to be sure my horse getting the right amount of vitamin E and selenium. As I board my horses I do not have to worry that they are being over or under fed the prescribed amount.
Date published: 2014-10-07
Rated 5 out of 5 by from Great for working horse Horse was very crampy and sore. After 1 week she was relaxing and moving much more fluidly.
Date published: 2014-08-23
Rated 5 out of 5 by from Excellent product. My horse eats it no problem. Love the paks. Im not at the barn when horses are fed, so its very easy for them to open pak and put in with his grain.
Date published: 2014-07-19
Rated 4 out of 5 by from Seems great I had my horse on the powder form per request of my vet. My vet said my horse needed some Selenium and Vitamin E and this seemed to be the best combination of the 2. I really have liked it. My horse has been on this brand of supplement for about a year now and he has done well on it. He has some muscle soreness in his neck and it has seemed to work it out a little. Hasn't made the world in difference, but I don't know what's going to.
Date published: 2014-03-20
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