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SmartFlex® Ultra Pellets

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    Cups:    ( Cups / Meal)
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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.
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Product Overview

Which horses benefit from comprehensive joint and soft tissue support?

Your horse’s body has the ability to repair and rebuild after normal “wear and tear” from light activity, but the increasing demands of riding and training could cause more damage than it can keep up with. Joint supplements in this category are designed for horses in heavy work to help support your horse by providing a steady supply of the ingredients he needs to cope with the demands of his workload. This level of support is also worth considering for horses in lighter workloads that may benefit from additional support due to factors like age or previous joint issues.

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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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  • Choose Your Flex: SmartFlex® Ultra
    Not sure which SmartFlex formula is the best one for you? Watch this short video & see if SmartFlex Ultra is right for you and your horse.
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    Simplify your life with SmartPaks: custom-made, pre-measured daily doses of your horse's supplements.


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.

SmartFlex® Ultra Pellets is rated 4.6 out of 5 by 588.
Rated 5 out of 5 by from Great ingredients with evidence to back it up! I like this supplement so far, I feel like I’ve seen some results already and I’m hoping those results will only continue to improve.
Date published: 2021-10-21
Rated 2 out of 5 by from No Improvement in Horse I have had my 14 y.o. Appaloosa on this product for 4 months and the 5th month is on the way. I will be canceling further orders as I have seen no improvement with my horse. He passed his PPE at purchase in February, 2021, (but I was advised he was 'pre-arthritic' ). I started the product in March, 2021. I figured a new horse, new life so let's get him on something. After a lot of research I picked this product with care. Unfortunately, it just hasn't worked. He is still 'stiff' when he starts a trail ride and hasn't improved much. I really wanted this product to work, but it has not. I feel after finishing this 5th month it is time to try something different. The price is reasonable for this type product. It may work for other horses but not mine.
Date published: 2021-07-06
Rated 5 out of 5 by from Seems to help I have my current dressage horse on this as a maintenance product and she really has no issues. I've also been feeding it to my retired 25 year old FEI horse. It has made a difference and he seems less stiff and more comfortable. He was retired due to severe tendon injuries so he's not always sound, but any increased comfort I can give him is worth it. He is also SUPER picky and eats it up. I love the convenience of smart paks, so I know they get their supplements.
Date published: 2021-06-23
Rated 2 out of 5 by from No improvement I was hoping this supplement would work for my horse based off reviews and what other peers have said. Previously was on cosequin ASU plus but wanted something more cost efficient. His mobility have became significantly worse over the past three months. Really wanted this to work but unfortunately cheaper doesn't mean better.
Date published: 2021-06-21
Rated 5 out of 5 by from SmartPak ultra pellet Seems to be working well for my filly during her major growing and beginning training stages
Date published: 2021-04-28
Rated 5 out of 5 by from Quality you can see I have an 18 year old thoroughbred that is loving life and still working hard. I put him on SmartFlex Ultra to keep him comfortable before injections this summer for jumping but he is currently traveling really well and happy to work!
Date published: 2021-04-07
Rated 5 out of 5 by from Works a lot better than ASU Plus I've had my boys on this product for about 5 months, after years of using Cosequin ASU Plus. Since changing, my gelding with a gaming history before I got him along with a bad hock has improved tremendously. Before, I would have to use Sore-no-more on his hock prior to his trims. Now, no problem. Before, when even having that hoof picked out he would kick back when I let hit down due to the pain. Now, no problem. My other horse is moving much more freely than before. This is an excellent product.
Date published: 2021-03-05
Rated 3 out of 5 by from Very good product Been usuing for the last several MN cold winters in place of Vets RX Previcox for arthritic pain. Found the product ads great deal of comfort without using more costly product. It is worth reasearching and trying products to help your horse and buget. The horse will show the end result and that is how we decide which additive and or supplement ingredients to administer to our horse. Very pleased with results, seems to ad relief of arthritic and stifle diagnosed symptons to older horse.
Date published: 2021-02-23
Rated 5 out of 5 by from Definite improvement My mare has been in this for a month and half now, and my trainer and I can both see a definite improvement in the way my mare is moving. We decided to put her on it after noticing that she was tight in her stifles. Plus she eats it right up, which is a win!
Date published: 2020-12-14
Rated 5 out of 5 by from Whole new horse My horse has been on this for nearly 3 months now and he feels like a completely new horse. He would trip behind frequently before and now he doesn't trip at all. He actually carries himself for the first time in a long time. He's 19.
Date published: 2020-11-20
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