PLEASE NOTE: You may experience errors on our site when using Internet Explorer 10 or lower. Please consider updating your browser, or download Google Chrome.
Ship speed applies to in stock items, pending location. Does not include personalized items like engraving, embroidery, SmartPaks, or PortionPaks. Complete details on our Shipping Policies page.
All of our supplement and product expertise is just a text away. Ask questions, manage your account, and place orders by texting 26756* from your mobile phone. Have a great ride!

Our experts are available
Monday – Thursday 9:00 am – 5:00 pm EST
Friday 9:00 am – 3:00 pm EST

*By texting 26756, you're giving SmartPak your consent to text you to help resolve your issue, including automated replies, at the number you provided. To opt out, text STOP to 26756. Text HELP to 26756 for info. Msg&rates may apply. Consent to receive texts not required to buy products. Terms & conditions and the full Text Message Privacy Policy can be found at https://www.smartpakequine.com/content/2waytextTC in case you're interested.
Putting your horse's supplements on AutoShip helps you take great care of your horse, so we take great care of you with SmartPerks! When you order your horse's supplements on AutoShip, you're automatically* eligible for our FREE SmartPerks benefits, including:
  • Free shipping every day
  • 10% off all Smartpak brand tack, apparel, and gear
  • A free Team SmartPak calendar, exclusive email offers and discounts, and more!
Learn more about SmartPerks
*At least one individual AutoShip supplement or horse's SmartPaks must be over $40. Some exclusions apply.
Visit SmartPak.com/SmartPerks or call 1-800-461-8898 for details.

Qualifying Items

Qualifying items are eligible for free shipping, every day. Look for the badge below on the product page to confirm that your item ships free!
Free Shipping

Ride Along Items

Ride Along items are eligible for free shipping when shipped with your next AutoShip order or any qualifying item. Look for the badge below to identify a Ride Along item.
Ships free with a qualifying item

E-Se-Mag Pellets

SmartSuggestion Bucket (Learn why)
1. Packaging/Size
The frequency you selected is not eligible for SmartPerks benefits that come with AutoShip supplement orders. In order to get benefits like free shipping and 10% off, set this product to ship at least every days. What are SmartPerks?
2. Customization & Shipping Frequency
You'll love our AutoShip because it's:
  • Focused on healthy s, because consistency is key
  • Easy to snooze or cancel online, anytime
  • Totally flexible - edit your order as often as you'd like
  • Your VIP pass to FREE SmartPerks benefits
PLUS! You'll save % on every shipment if you order this product on AutoShip PLUS! You'll save % on every shipment if you order this product on AutoShip
We're bringing you this product at the lowest price allowed by the manufacturer so you won't find it cheaper anywhere else. This also means we can't apply any further discounts or promotions.
These are for:
Sign in to choose an existing
These are for:
Sign in to choose an existing
Maintenance dose

Choose AutoShip to become eligible to apply for the FREE Colicare Program after checkout.

ColiCare is a FREE veterinarian-directed wellness program that provides enrolled horses with up to $7,500 of colic surgery reimbursement.

How Does it Work?

  1. Order any ColiCare Eligible Product in SmartPaks
  2. Fill out the quick application online- no paperwork required!
  3. Complete the Annual Wellness Requirements every year:
  • Physical exam performed by your vet
  • Dental exam performed by your vet
  • Vaccinations administered by your vet
  • Deworming program developed with your vet that includes at least one fecal test and two deworming administrations per year

Provided you meet the requirements above, if your horse undergoes any type of colic surgery, you'll be eligible for up to $7,500 of reimbursement.

Learn More »
  • This horse already has an existing AutoShip SmartPak. Please select the "AutoShip" checkbox or enter a different horse name.
  • SmartPak Pouches are currently only available for horses receiving one daily dose supplement, but the horse you've selected is already receiving other daily dose supplements. Please select "SmartPak Strips" to add this supplement to your horse's current order or enter a different horse name.
Please call 1-800-461-8898 to order this product.
New ship same day!
These are for:
Sign in to choose an existing
  • This horse already has an existing AutoShip SmartPak. Please select the "AutoShip" checkbox or enter a different horse name.
  • SmartPak Pouches are currently only available for horses receiving one daily dose supplement, but the horse you've selected is already receiving other daily dose supplements. Please select "SmartPak Strips" to add this supplement to your horse's current order or enter a different horse name.
-
+
Order within and
have it by
Shipping to
Add these items to your cart to get your estimated arrival date.
Shipping to
These are for:
Sign in to choose an existing
These are for:
Sign in to choose an existing
Feeding Chart

Daily Serving

Dog Weight - lbs Inactive Dog Active Dog Working Dog
-
Inactive Dog - Less than 30 minutes of vigorous exercise daily
Active Dog - At least 30 minutes of vigorous exercise daily
Working Dog - More than two hours of vigorous exercise daily
This is only a guide. Please consult your veterinarian to determine the perfect feeding amount for your dog.
( Cups / Meal)
These are for:
Sign in to choose an existing
Maintenance dose

You're eligible to apply for our FREE ColiCare Program after checkout.

ColiCare is a FREE veterinarian-directed wellness program that provides enrolled horses with up to $7,500 of colic surgery reimbursement.

How Does it Work?

  1. Order any ColiCare Eligible Product in SmartPaks
  2. Fill out the quick application online- no paperwork required!
  3. Complete the Annual Wellness Requirements every year:
  • Physical exam performed by your vet
  • Dental exam performed by your vet
  • Vaccinations administered by your vet
  • Deworming program developed with your vet that includes at least one fecal test and two deworming administrations per year

Provided you meet the requirements above, if your horse undergoes any type of colic surgery, you'll be eligible for up to $7,500 of reimbursement.

Learn More »
  • This horse already has an existing AutoShip SmartPak. Please select the "AutoShip" checkbox or enter a different horse name.
  • SmartPak Pouches are currently only available for horses receiving one daily dose supplement, but the horse you've selected is already receiving other daily dose supplements. Please select "SmartPak Strips" to add this supplement to your horse's current order or enter a different horse name.
Please call 1-800-461-8898 to order this product.
New ship same day!
These are for:
Sign in to choose an existing
  • This horse already has an existing AutoShip SmartPak. Please select the "AutoShip" checkbox or enter a different horse name.
  • SmartPak Pouches are currently only available for horses receiving one daily dose supplement, but the horse you've selected is already receiving other daily dose supplements. Please select "SmartPak Strips" to add this supplement to your horse's current order or enter a different horse name.
-
+
Order within and
have it by
Shipping to
Add these items to your cart to get your estimated arrival date.
Shipping to

Support for sore muscles

  • 1,000 IU of vitamin E, 2 mg of selenium & 3,000 mg of magnesium
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.

100% Happiness
Guarantee
HappinessGuarantee
At SmartPak, your happiness is at the core of everything we do. We back every order with our 100% Happiness Guarantee so that you can shop with confidence. If you're ever less than thrilled with your purchase, just let us know and we'll refund you right away. No hassles, no hoops, no kidding.

Other ways to support success

(based on )
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.

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.

  • Review 0
  • Votes 0
  • Discipline:
  • Expertise:
  • Product
    Experience:
  • Competitor:
Quality
Value
Palatability

Helpful?

Ingredients

(Maintenance Dose = )
Ingredient Per Serving Per Pound
How the Ingredients Work
  •  
  •  
  •  

Instructions

Order in SmartPaks
Instructions for Use:
Horse Weight Recommended Amount Loading Amount

Clinical Research

You Might Like
    Customers Also Shopped For
    Apple Cider Vinegar has been used as a ...
    Description:
    Apple Cider Vinegar has been used as a natural health supplement for generations. Horses, farm animals, domestic pets, and humans have all benefitted from adding a bit of ACV to their diet. Cider Vinegar is a rich, natural source of ...
    Botanical Animal® Devil Be Gone™ is designed to ...
    Description:
    Botanical Animal® Devil Be Gone™ is designed to help animals feel calm and safe. Helps address willfulness, rebelliousness, hostility, aggressiveness, anger, or an obsessive need to protect the caregiver. Available in a 1 oz. Bottle Directions for Use: For best ...
    Botanical Animal® Independence™ addresses the lingering loneliness that ...
    Description:
    Botanical Animal® Independence™ addresses the lingering loneliness that some animals experience when left alone at home or are separated from herd members. This product may help to soothe animals who lash out when left alone, lack self-nurturing qualities, or find ...
    Botanical Animal® Mellow Out™ is a blend of ...
    Description:
    Botanical Animal® Mellow Out™ is a blend of natural essences that combine to address anxiety and nervousness in your horses, dogs, and other pets. This is a holistic remedy that naturally combats anxiety caused by overwhelming stimuli. This is a ...
    Botanical Animal® Obsess Less™ is a homeopathic remedy ...
    Description:
    Botanical Animal® Obsess Less™ is a homeopathic remedy designed to help pets who manage their anxiety with negative, often obsessive, behaviors. Many pets are plagued with internal stressors that are expressed through obsessive-compulsive behavior. This can lead to self-destructive tendencies ...
    Circulate Support Gold is a liquid herbal supplement ...
    Description:
    Circulate Support Gold is a liquid herbal supplement formulated by Hilton Herbs to maintain and support an efficient circulatory system and help promote normal blood flow in horses. It provides a targeted combination of herbs, including prickly ash bark, bilberry ...
    Elevate was developed to provide a highly bioavailable ...
    Description:
    Elevate was developed to provide a highly bioavailable source of natural vitamin E to horses. Vitamin E, a powerful antioxidant, limits the damage caused by everyday oxidative stress. It maintains healthy muscle and nerve function and supports a healthy immune ...

    Reviews

    E-Se-Mag Pellets is rated 4.7 out of 5 by 32.
    Rated 3 out of 5 by from Less "touchy" so far None of my horses have access to year round green grass, and summers bring very little grazing on our property in the high desert. Even though they are all on custom mixes of feed and forage, alfalfa, 24/7 grass hay, etc., my mare has always been thin skinned and very sore after workouts (with PEMF, chiro, massage, stretches specifically designed for her, and oh so much more maintenance than we all would like to admit, haha). She has been on this for 2 months and is so far seeming less sore after a work out. I will update the review after the hard riding season gets underway!
    Date published: 2019-04-01
    Rated 5 out of 5 by from Great for horses increasing work load I've had my mare on this for a couple of months now, and put her on it as she was put into work with a trainer. She went from no work to working 5-6 days per week and didn't have any sore days, even after intense lessons. She is 14 years old, and has no maintenance. I love this product! I have transitioned all of my horses onto it.
    Date published: 2018-10-24
    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
    • y_2019, m_5, d_25, h_17
    • bvseo_bulk, prod_bvrr, vn_bulk_2.0.12
    • cp_1, bvpage1
    • co_hasreviews, tv_3, tr_29
    • loc_en_US, sid_11702, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_smartpak
    • bvseo_sdk, net_sdk, 3.2.0.0
    • CLOUD, getContent, 187ms
    • REVIEWS, PRODUCT

    Q & A

    Healthy Horses  ❤  Happy Riders