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Ex Stress

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Feeding Chart

Daily Serving

Feeding Chart
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.
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Only SmartPaks on AutoShip make you eligible to apply for the FREE ColiCare Program. Colicare is a free program that provides up to $15,000 in colic surgery reimbursement
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Product Overview

Maintains a healthy nervous system

Ex Stress is an all-natural, herb-free formula to help your horse handle the stress of travel and competition. Ex Stress contains concentrated levels of vitamin B1 (thiamine), other B vitamins, and magnesium.

  • Concentrated levels of vitamin B1, other B vitamins & magnesium for nervous system function

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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

Supercharge Your Supplements

  • Simplify with SmartPaks | Consistent, Custom, Convenient
    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.

Ex Stress is rated 4.2 out of 5 by 76.
Rated 5 out of 5 by from actually helped i tried this a while back and it didn't help. tried other products which didn't help, even altrenogest. tried this again BUT increased the dose to max and it did /does give her some calmness.
Date published: 2020-03-31
Rated 1 out of 5 by from My horse hated it. I was so disappointed with this! I love the Ex stress paste so I thought I would give the powder a try. I have never known my horse to be a picky eater but he refused to touch his food with this in it! I even added some pure peppermint extract to encourage him but it didn't help. I put it in a syringe squirted it down his throat for a couple of days and decided that wasn't worth it. So I can't say whether it works or not only that my horse wouldn't eat it.
Date published: 2018-06-25
Rated 5 out of 5 by from Working for my 9yr OTTB I switched to this calming supplement after using another one and I can say this has help immensely! However, please understand this is not going to make your horse a perfect angel but, it will get them to focus more. My horse is not making mountains out of ant hills....more like sand dunes now. Note: this stuff is nasty. I've tasted it so, I suggest to mix it with something else. I mix mine with Natural Glo
Date published: 2018-01-08
Rated 4 out of 5 by from This product works! We have had my daughter's horse on ExStress for almost a month now. We just cam back from Thermal and we really think it made a difference. her horse is a 6 year old who likes to throw a nasty buck now and then. Ever since starting it - no big nasty bucks - and that includes rides after being stuck in a stall due to rain. We are going to keep using it!
Date published: 2017-01-25
Rated 4 out of 5 by from It works well on my horse, I have to feed it in a little bit of Applesauce due to the smell.
Date published: 2016-09-27
Rated 1 out of 5 by from Didn't Like It My mare, Rayne, tried it a few days here and there, but overall decided that the mac n' cheese powder wasn't for her. She ended up just leaving all of her grain untouched, sometimes even flipping the bowl over and out of her trough.
Date published: 2016-04-15
Rated 3 out of 5 by from Saw no difference My horse was on this for about a month and a half and I have yet to see a difference. :/
Date published: 2015-01-29
Rated 3 out of 5 by from Won't eat it. :( I bought enough Ex Stress powder in SmartPaks for show season. Just found out at our first show of the year that he won't eat it. He went completely off his grain (which he hasn't done before) and the only change had been the addition of Ex Stress. Ex Stress ended up causing me stress! I still gave it 3* because our trainer swears by it (if they'll eat it!)
Date published: 2014-04-16
Rated 5 out of 5 by from Split between two horses I was interested in supplementing my mare with magnesium as she is on long-term omeperazole for ulcers and studies in humans have shown a decrease in magnesium. When comparing supplements I noticed Ex-Stress had significantly more B vitamins as most of the other supplements and I know B vitamins can help with spookiness, so I had SmartPack split the dose into two and give half to my sometimes spooky gelding. Both horses are doing great on 1/2 dose!
Date published: 2013-05-15
Rated 4 out of 5 by from Definitely works I have an OTTB with severe anxiety. The ExStress is definitely working for him. The biggest drawback is that it has to be given twice a day. I tried doubling it up and giving it once a day but it didn't work for my guy. And he eats absolutely anything so I can't speak as to the palatability of it, but the smell is a little off putting.
Date published: 2013-04-04
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