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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
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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

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Ingredient Name Amount Per Pound

Ingredient Details


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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 214.
Rated 4 out of 5 by from Easy to feed and palatable I love the product and what it is doing for my horses, I just wish it came in a larger container. I am feeding it to 2 horses and go through the container quickly.
Date published: 2020-07-13
Rated 5 out of 5 by from Saw a big difference! I bought a pony as a resale project that was so skinny and had absolutely no muscle due to lack of work and improper nutrition! In addition to a well-balanced diet, I wanted to make sure to give her the proper building blocks to get her muscles built up properly! Adding this supplement made such a huge difference for her!
Date published: 2020-06-20
Rated 5 out of 5 by from It works! I have been struggling to build up my horses top line and thought I’d try this product. I’m on my 2nd refill and I already see a BIG difference in his top line! I’m thrilled!
Date published: 2020-05-13
Rated 5 out of 5 by from Works very well on building muscle and topline See huge difference in my geldings Topline, butt and neck. This stuff works.
Date published: 2020-05-04
Rated 5 out of 5 by from Put weight on my horse after Lyme disease My mare needed serious rehab after Lyme disease. She list all of her top line and developed kissing spines. The vet felt certain that she would be fine if we could build her back up, so after a month of hand-walking and lunging, we were able to start riding again. We had added some cool proteins to her diet, but she wasn’t building muscle as quickly as we had hoped. My farrier recommended this and in about 4 weeks I started to see a big improvement. She doesn’t have her summer coat yet, but even though her winter coat is in the middle of shedding, it’s soft and shiny. Her feet are doing great, and I am starting to see a lot more top line, and she really isn’t getting sore from working. I was giving her weight builder, and I had to back that off because she is putting in a lot of weight since we started the tri-amino
Date published: 2020-04-12
Rated 5 out of 5 by from Really helps! I have a gelding who loses a ton of muscle after he has been on hay during the winter. The first winter I used it, I saw results in about 45 days. I have used it for 4 winters now with great results
Date published: 2020-02-17
Rated 3 out of 5 by from No difference after 2-3 months just crazy mare! So far no changes :/ I’ve had my mare on this for a month now and I’m thinking about either trying another month or trying something else :/ I have seen no change in body or top line. Only change is that she went from lazy pony mare to spooking at things and acting like a fire cracker! Also I wish was pellet form the powder she won’t eat unless I mix apple sauce :/
Date published: 2020-02-04
Rated 5 out of 5 by from Great product So glad I am giving it to my horse I can see a noticeable difference in his topline and butt it for sure works!!
Date published: 2020-01-27
Rated 5 out of 5 by from Its working Just started using this on my 20 year old mare a few weeks ago and I think I am seeing a difference.
Date published: 2019-12-11
Rated 5 out of 5 by from Great supplement! Glad that I purchased this supplement. Saw a difference in my horse's hair growth first and then his top line/hind end started to build. I am on my third jug and have since pulled his shoes with no chipping and limited soreness, too. Not saying this is a 'savior' as he is on a handful of other things as well.... but definitely going to keep him on this with the positive results I have seen. And, he eats it!
Date published: 2019-11-16
Rated 3 out of 5 by from So far no changes :/ I’ve had my mare on this for a month now and I’m thinking about either trying another month or trying something else :/ I have seen no change in body or top line. Only change is that she went from lazy pony mare to spooking at things and acting like a fire cracker! Also I wish was pellet form the powder she won’t eat unless I mix apple sauce :/
Date published: 2019-10-22
Rated 1 out of 5 by from Made horse hot! Using a supplement with amino acids was recommended to me. I was able to use for about 2 weeks - so used roughly half the product - before I started to notice his energy level went through the roof, super hot, lost weight. I wish I wouldn't have put him on this product.
Date published: 2019-09-24
Rated 3 out of 5 by from Horse spit it out! In 18 years of owning my horse, I've never seen him spit anything out...until he was given feed with Tri-Amino in it. Spit it out and then quite literally turned up his nose. Still giving it 3 stars as I appreciate the product and price, but wish it had been made more palatable / not a powder. My older horse needs help with his topline, but this product isn't going to provide it.
Date published: 2019-09-15
Rated 5 out of 5 by from Great bang for your buck! I love this supplement for my ex-Amish driving horse. Since I am asking him to move in a very different posture, I feel it’s important to give him the building blocks to help him grow these new muscles!
Date published: 2019-08-06
Rated 5 out of 5 by from very palatable for the horses I will continue to buy product. It is shipped with in days
Date published: 2019-07-15
Rated 4 out of 5 by from Using TriAmino on my 13 year old Paint mare to help build topline.
Date published: 2019-07-01
Rated 5 out of 5 by from Senior horse owners I've been using this on my 24 year old QH gelding who was losing weight last year on his regular feed and hay. I supplemented his diet with soaked timothy/alfalfa hay pellets and Tri-Amino. He gained weight and his topline filled out. He looks much younger and healthier and feels it too! I have a herd of horses and can't afford the pricier supplements, so was really happy to see how this less expensive one works so well.
Date published: 2019-03-22
Rated 5 out of 5 by from Great product and fair price I started my 17yr old QH gelding on Tri-amino to help him maintain/support his topline as he ages. I wasn't expecting to see results so soon since he's not in work during the winter, but I've noticed he looks fuller through his withers (used to have a bit of a dip behind them) and also over his hindquarters. I even think his mane and tail are benefitting. I cant wait to see how he looks once he comes back into work and is doing exercises to help build muscle while on this product.
Date published: 2019-02-06
Rated 2 out of 5 by from I haven’t seen a difference I’ve been using it for a couple months on my quarter horse gelding, I had hoped it would aid in adding muscle on the top line and make his mane grow. I’ve seen no improvement. On the plus side he eats it no problem.
Date published: 2019-01-30
Rated 5 out of 5 by from Noticeable Tail and Mane Growth Bought this to assist with muscle/top line development. Not only have I seen an increase in my gelding's muscle development, his mane and tail have grown noticeably. Others in my barn have even commented on the thickness/growth of his tail. Results were within 1 month.
Date published: 2018-12-26
Rated 3 out of 5 by from About 30 days into feeding and haven't noticed any significant different
Date published: 2018-12-13
Rated 4 out of 5 by from Good value I have only been using this for a couple of months but I think it is beginning to show the effects of use. My quarter horse has some issues that we are working with the vet on but I think this is helping with muscle and soft tissue.
Date published: 2018-11-19
Rated 5 out of 5 by from Well worth the price! I added this to my SmartPaks a month ago and I can see my senior horse’s top line filling in. He’s also gaining more muscle & looks better than ever.
Date published: 2018-10-24
Rated 5 out of 5 by from I love tri-amino My senior horse has been on tri-amino for years. It really does help with building up his topline and other muscles.
Date published: 2018-10-21
Rated 5 out of 5 by from Gave my mare a Topline! I bought this a month ago and since using it, my mare has gained a topline and muscle behind her wither.
Date published: 2018-10-15
Rated 4 out of 5 by from Great product! It improved my pony's muscle tone No problems feeding Tri amino with sweet feed.
Date published: 2018-09-28
Rated 5 out of 5 by from Great suppliment I like that it's palatable for my horse in his grains because he can be fussy with what's in there but he eats this right up . Also I find it has been a great addition to my horses work out regimine helping him get fit .
Date published: 2018-05-15
Rated 5 out of 5 by from I can't believe the difference I have gone through three of the 2lb tubs of this and I can see a huge difference in my horse. Before it didn't matter what I did--proper diet and exercise was NOT fixing his topline. He looks amazing now and he's clocking much better times in the arena. I could not be happier. This product isn't even expensive! I added a before and after pic--in the "before" he's so lanky, his belly sticks out, and his topline is horrible even though I was exercising him and feeding him quality feed all by the advice of my vet. We then decided to add this supplement and the "after" picture was taken yesterday during his bath. No more belly poking out and finally some definition along his topline. We still have some work to do to get him looking perfect, but this is a great start. Also, it smells a little weird but he eats it just fine.
Date published: 2018-05-09
Rated 5 out of 5 by from Great for toplines I have a gelding that lost a lot of muscle tone especially along his topline for unknown reasons. I decided to try this supplement and it has done wonders for this horse. It took approx. 6 weeks for him to regain what he had lost plus gain muscle overall. This is one of the most reasonably priced supplements to feed as well.
Date published: 2018-03-16
Rated 5 out of 5 by from Love This supplement has helped my horse build muscle and have an overall healthier body condition.
Date published: 2018-03-15
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