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Product Overview

Essential amino acids for protein production

Tri Amino™ Powder provides the essential amino acids to help maintain strong muscles, support a healthy topline, and assist in protein production. Essential amino acids means that if they are not provided in adequate amounts, body productions will be limited. As horses, lysine, methionine, and threonine are not produced on their own and therefore can be supplied in their diet. Lysine and threonine are the most likely to be deficient and if found in low amounts can limit the body’s ability to build muscle. A deficiency in methionine affects muscle function and synthesis of structural proteins such as as hoof, connective tissue, and hair health. Lysine and threonine also aid in immune function and is involved in bone health. Tri Amino offers these protein building block in their pure forms, working together to support your horse’s overall body condition and create ideal protein levels for muscle building and function.

Made in the USA.
  • Muscle support for protein deficient diets
  • Supports hooves, bone health, immune function, connective tissue, mane and coat

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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.

Tri-Amino is rated 4.4 out of 5 by 239.
Rated 4 out of 5 by from Horse likes it, smartpaks leak and waste it. My horse seems to like it and it helps her topline. I wouldn't recommend getting it as part of a smartpak. I find smartpaks aren't well sealed these days and the powder supplements spill all over. It's a mess and a waste of money. If I continue this I will do it in bulk.
Date published: 2023-12-30
Rated 5 out of 5 by from love it i absolutely love this for my senior (29yro) rescue <3 i’ve been worried about his condition and muscle since he was extremely neglected for 5 years before i got the chance to help him and i’ve seen improvement in the short time i’ve used this for him :)
Date published: 2023-11-25
Rated 5 out of 5 by from I bought this 2 months ago and love it !! It def helps with muscle and topline
Date published: 2023-07-18
Rated 1 out of 5 by from Waste of money. My mare won't touch it. She's not picky at all but wouldn't touch this at all. I thought I'd canceled my order and I was billed and it shipped yet again. Disappointed.
Date published: 2023-05-22
Rated 5 out of 5 by from Noticeable difference I've noticed a difference in my 8 year old OTTB topline. A barn mate randomly complimented that he looks beefier. He's in moderate work 4-5 days per week. He's not a super picky eater and eats it eventually. It smells like maple syrup. I do wish it came in pellets. The price on this product is really good for what you get.
Date published: 2023-02-23
Rated 5 out of 5 by from Seems to work! My 12 yr old FriesianX seemed to be less energetic as last Summer wore on. He is on a grass hay only diet. I added TriAmino to his supplements a month ago and he has perked up back to his old self. Of course the Winter weather helps, so I will be interested in how he is responding when the weather turns warm again, but so far, so good. I've seen other reviewers criticize the taste, but Leo has no problem eating this up with his nighttime grain.
Date published: 2022-01-02
Rated 5 out of 5 by from Super useful for my easy keeper My mare is IR and needs minimized calories. Even a ration balancer has too much "filler". So she gets a vitamin/mineral supplement, and I recently added a scoop of Tri Amino because I was worried tgat she wasn't getting enough protein. The results are great - she had more energy and the most beautiful dapples and nice coat. (Photo shows her having gotten into a place she shouldn't have, but that's another story... Just look at those dapples! She is not clipped.)
Date published: 2021-12-14
Rated 5 out of 5 by from Wow My horse was out of work for a bit and lost a lot of muscle during that period. Shortly before he was able to start working again, I decided to put him on Tri-Amino. All I can say is, Wow. The difference in how he looks/feels/moves is night and day. He is building and maintaining muscle so well. He's been on Tri-Amino for a little over two months, and it didn't take anywhere close to that long to start noticing a difference. Now -- I'm not saying this progress is entirely due to this supplement. He is in solid, consistent, slow-and-steady work. However, when I bought him a few years ago, he was also quite under-muscled, and the progress didn't come as quickly then as it has now with the addition of Tri-Amino into the equation. Especially at this price point, I have no plans to remove this supplement from his menu.
Date published: 2021-12-02
Rated 1 out of 5 by from Horses hated it Tried this from my farrier's recommendation to help my mare's hooves. None of my horses wanted to eat it. 2 out of 3 will eat anything and they didn't like it.
Date published: 2021-10-25
Rated 1 out of 5 by from Made my horse super hot Made my horse super hot and unbearable. Would not recommend. Horse did like the powder taste though
Date published: 2021-10-18
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