Order within and have it by * in (edit)
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.
Contact our experts 24/7: Call 800-461-8898

The SmartPak Experts are now SmartPak TEXTperts!

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!

Text us at 26756

Available Monday - Friday
9:00am - 5:30pm 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&data 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.
SmartPaks help you take great care of your horse, so we take great care of you with SmartPerks! When you order your horse's supplements in SmartPaks, you're automatically* eligible for our FREE SmartPerks benefits, including:
  • Free ground shipping on what you want, when you want it
  • 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 horse's individual SmartPaks must be over $40. Some exclusions apply.
Visit SmartPak.com/SmartPerks or call 1-800-461-8898 for details.
As a SmartPaks Subscriber, you can get free ground shipping all day, every day on just about everything we sell at SmartPak, thanks to your SmartPerks. The few add-on items we have can be shipped free by synching them with your horse's SmartPaks, shipping on a Barn Saver Shipping day, or by having a group of add-on items that total over $75.

Have a question?
Call 1-800-461-8898 or email CustomerCare@SmartPak.com anytime!
Uckele Health & Nutrition — Item #18489
SmartSuggestion Bucket (Learn why)
  SmartPaks Over $40 Ship Free!
Free Shipping Thanks To
This item may be eligible for

Oops! Looks like you've already added this item to your order.

Please select a different recipient name if you'd like to create a new order, or give us a call - we're happy to help!

Essential amino acids for protein production

  • Contains 10,000 mg of L-lysine, 5,000 mg of DL-methionine & 2,000 mg of L-threonine
  • These three amino acids must be provided in horses' diets because they can't make them on their own
Support your horse with essential amino acids!

Tri-Amino contains lysine, methionine, and threonine. These essential amino acids must be supplied in the diet, because horses cannot make them on their own. Lysine, methionine, and threonine are also limiting amino acids, meaning that if they are not present in adequate amounts, the body's ability to make protein can be limited.

Lysine aids in bone health and immune function.

Methionine is vital to the health of hooves, and the density of the mane and coat.

Threonine aids in normal immune and digestive functions, as well as supporting muscle mass.


Guaranteed Analysis per 20g dose:
(Maintenance Dose = 1 scoop (20g) daily)
Ingredient Per Serving Per Pound
L-Lysine 10g (10,000 mg) 50%
DL-Methionine 5g (5,000 mg) 25%
L-Threonine 2g (2,000 mg) 10%
Ingredients:: L-Lysine Mono Hydrochloride, DL-Methionine, L-Threonine


Instructions for Use:
Feeding Directions: Feed 20 grams daily. One rounded scoop = 20 grams

Clinical Research

You Might Like
    Customers Also Shopped For
    "Ideal supplement for supporting overall health with the ...
    "Ideal supplement for supporting overall health with the patented immune and antioxidant support of GlutaSyn®, selenium, and 1000 IUs of vitamin E. Great for horses under stress. Learn More about Accel Lifetime View our Multi-Vitamin Supplement Comparison Chart View our ...
    "A SmartPak exclusive! All the benefits of Uckele’s ...
    "A SmartPak exclusive! All the benefits of Uckele’s renowned Cocosoya Oil in a tasty powder that horses love. This unique blend includes stabilized flaxseed and rice bran, along with probiotics and prebiotics for digestive health. The combination of omega 3 ...
    "D-Carb Balance is a multi-vitamin/mineral supplement formulated for ...
    "D-Carb Balance is a multi-vitamin/mineral supplement formulated for horses predisposed to insulin resistance and/or an inability to metabolize high carbohydrate levels. D-Carb Balance is in a palatable pellet form with a rice bran base. Chromium and magnesium may help regulate ...
    "FOCUS SR provides all of the benefits of ...
    "FOCUS SR provides all of the benefits of the original SOURCE formula with added support for the aging horse. In addition to a daily serving of SOURCE, FOCUS SR contains antioxidants, vitamins, beneficial microbes, chelated minerals, fatty acids, and enzymes. ...
    "Metaboleeze contains a digestible source of chromium combined ...
    "Metaboleeze contains a digestible source of chromium combined with B-complex vitamins and organic trace minerals. Metaboleeze may be appropriate for supporting horses with Equine Metabolic Syndrome/insulin resistance, as well as some types of tying-up. Work with your veterinarian to determine ...
    "Select the Best's MSM is an ultra-pure 99.9% ...
    "Select the Best's MSM is an ultra-pure 99.9% source of bio-available sulfur. MSM, or methylsulfonylmethane, is thought to support a healthy inflammatory response. No fillers, artificial colors, or flavors. View Our Comfort Supplements Comparison Chart View our Joint Supplement Comparison ...
    "Omega Suregut is a fully comprehensive digestive supplement ...
    "Omega Suregut is a fully comprehensive digestive supplement containing both probiotics and prebiotics. Both are crucial to help ensure the production of beneficial bacteria throughout the digestive tract. Omega Suregut is also formulated to include stabilized ground flaxseed, yeast, and ...


    out of 5
    89% 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.

    • Review 0
    • Votes 0
    • Discipline:
    • Expertise:
    • Product
    • Competitor:


    Tri-Amino is rated 4.5 out of 5 by 153.
    Rated 3 out of 5 by from Wish it were pellets
    Date published: 2017-01-02
    Rated 5 out of 5 by from Good for top line
    Date published: 2016-11-09
    Rated 5 out of 5 by from Top-line development I used this product previously on an older Arab who had been a bit neglected. After a few months of this with flax and proper exercise he looked like a new horse. Now I'm using it on a paint who was also a bit under-nourished. After just about a month, he looks fabulous. I get lots of compliments on him. His energy and stamina have also increased without him becoming "hot".
    Date published: 2016-11-02
    Rated 5 out of 5 by from Worked like a charm! I have a small pocket rocket OTTB mare that we have struggled for a year to keep weight on. We have tried multiple feeds and supplements and Omelene 500 grain got us a good start. However, the Tri-Amino from Smartpak was absolutely the final key necessary. She went from dull coat, thin, and just overall poor looking to thick, muscled, and dappled in a month! She is in light work 2-3 days/week and she has absolutely blossomed on this product. I will continue her on it and plan to put my other OTTB on it next month as well!
    Date published: 2016-10-27
    Rated 4 out of 5 by from So far so good I bought this to help my yearling with some uneven muscle development on his left hip due to a hock injury and this appears to be helping build up some muscle along with exercise. It is palatable and reasonably priced as well. I was looking for something with just amino acids as he already gets other supplements for vitamins, etc. and this product is just a protein powder which is what I needed.
    Date published: 2016-10-24
    Rated 5 out of 5 by from I haven't noticed a difference yet
    Date published: 2016-10-20
    Rated 3 out of 5 by from Not much difference I used this supplement hoping to see some improvement in my Thoroughbred's muscling, specifically along his top line, but never really saw a change.
    Date published: 2016-09-19
    Rated 3 out of 5 by from Eh, not so sure I bought this for my 28 year old quarter horse gelding, hoping that it would help build up his toplane. He's been on it for roughly one month and being exercised 3-5 days a week (some days ridden and some lunged), but I really can't say that I've seen a substantial difference in his muscling. His hindquarters are more solid for sure, but the topline is about the same as it was before adding in the Tri-Amino. Not sure if the increased muscling behind is a result of the Tri-Amino, work, or a combination of both. However I will say that as an EXTREMELY picky eater, he licks his bucket clean! And for the price, it's worth continuing for another month or two before making a final judgment call.
    Date published: 2016-09-16
    Rated 5 out of 5 by from Worked rediculously well! My TB has been on this maybe 6 weeks. His tendency is to be muscled but had plateaued. On a whim, I tried this and it made a huge difference. Everyone commented.
    Date published: 2016-09-04
    Rated 4 out of 5 by from Great Top Line I bought this product over a month ago and it's great. Filled in my 10 yr old and 24 yr old top line and gave them great muscle tone.
    Date published: 2016-08-30
    Rated 5 out of 5 by from Helped DSLD horse with muscle weakness I bought this for my mare who we recently found has a soy allergy. I needed something to replace the amino acids that were in her ration balancer. Unfortunately she wouldn't touch the stuff so I gave it to my mother's gelding who has DSLD. He had shaking hind legs and had lost his topline over the past few months. He looks and moves like a different horse now. To be fair, we started him on Previcox at the same time but the improvement in his topline and muscling is astounding. Our farrier saw him for the first time in 8 weeks and can't believe it's the same horse. Just wish my picky mare would eat it now too! Great value for the money. He's only 800 pounds so we give him a half scoop and it's doing wonders!
    Date published: 2016-07-30
    Rated 5 out of 5 by from Excellent for young performing horses Started using this based on a trainers recommendation and it really helped my younger show horses fill out and perform to potential. Our goal was developing their hindquarters to muscle up as we trained and we saw great results.
    Date published: 2016-06-22
    Rated 5 out of 5 by from
    Date published: 2016-06-16
    Rated 5 out of 5 by from Helping to build muscle Using this to promote muscle building and tone on my horse with some ongoing stifle lameness and issues. It seems to be working well! He has gained muscle and filled out over his topline and hips. It is cost effective as well which is important when you are treating an injured horse.
    Date published: 2016-06-10
    Rated 5 out of 5 by from Building top line Very happy w the physical changes we are seeing already
    Date published: 2016-06-06
    Rated 5 out of 5 by from Love Fantastic product! Offers 3 amino acids with no fillers
    Date published: 2016-05-29
    Rated 4 out of 5 by from No stunning results yet My mare wouldn't eat it at first, wouldn't even touch the grain. Then when she truly believed she would starve if she didn't eat, she began eating it and had no other problems. Her coat looks good, even getting some dapples. She looked pretty good muscularly before we started tri-amino, haven't noticed any significant changes but she wasn't in bad shape. I love the three way action, I researched extensively into the 3 amino acids. One is known for ulcer prevention which is fabulous.
    Date published: 2016-05-26
    Rated 5 out of 5 by from Bought this for my 21 year old and she has more energy then ever! And is able to keep her top line looking great!
    Date published: 2016-05-25
    Rated 5 out of 5 by from Good Makes up for B vits missing in othersupplements that should have it....
    Date published: 2016-05-10
    Rated 5 out of 5 by from Works great! My 26 year old lost topline and some muscle mass this winter. I bought the tri-amino due to the recommendation of others. At first, I wasn't so sure, but then again, he wasn't being worked much. After about a month, I noticed he had more muscle mass in his legs and chest. I've been walking him around and have recently started longeing him in trot the last few days. Since doing this, I've noticed his top line has seemed to improve. Today was the first day on our trail ride since October. After the ride, he seemed to be so much bulkier. I know it doesn't work that fast, but it just seemed like he bulked up. It was probably the sweat enhancing the muscle, like on a muscular person. Who doesn't love that! So far after only 2 months of use his muscle has greatly improved, I am loving this product!! And he doesn't mind the taste either. Thanks smartpak!!
    Date published: 2016-05-07
    Rated 4 out of 5 by from Seems to be working I just started my horse on this 6 weeks ago. He's bene laid up with a tendon injury and I was concerned that he would lose muscle mass and toning. Instead, despite having a few months off, he looks better than ever! My trainer and vet have both commented on it! I can't wait to get him back to work while he's on this supplement.
    Date published: 2016-04-26
    Rated 5 out of 5 by from Great for muscle and shine We have had two of our heel horses on this supplement for a few months and get comments on how great they look left and right. People ask us what we are feeding all of the time. Added muscle and coat shine. Worth the buy.
    Date published: 2016-04-26
    Rated 5 out of 5 by from
    Date published: 2016-03-28
    Rated 5 out of 5 by from Already seeing results! I started my made on this about two months ago and already see muscles forming in her shoulders and top line. She is 17 years old and was out of work for about four years, so she lost quite a bit of muscle. Now that she is starting back in work, I wanted to give her something extra to help with muscle building and am so happy I chose this. Also, you can't beat the price!
    Date published: 2016-03-11
    Rated 4 out of 5 by from Promising for topline development My mare has PSSM and struggles to build her topline. Although her diet was not low in amino acids, this seems to be adding a boost. Will know more after another month. Note: the aroma is a bit funky, but if your horse is willing to eat supplements like equipride or source, I think they would find it okay. My mare scarfs it up.
    Date published: 2016-03-08
    Rated 5 out of 5 by from Best supplement ever I was having a very hard time putting a topline on my horse regardless of excersize and the amount of feed after 30 days on this product he looks amazing!The first 3-4 weeks I did not notice any diffrence then one day he just bloomed.I picked this product to try because it had no fillers in the ingredients and offered 3 of the essential amino acids rather then just the lysine. I highly suggest trying it ( at least 60 days). It does have a terrible taste but both of my picky eaters don't even notice it mixed with their feed.
    Date published: 2016-03-03
    Rated 2 out of 5 by from Product were good but not for picky horse I ordered this product recently and its powder stuff that my horse refuse to eat it so I tried to add some molasses and mix them. My horse did eat some but still not eat all those powder w/ molasses mix as he is picky. I wish these product would make pellets instead powder. This product is good price and needed for horse's body.
    Date published: 2016-02-24
    Rated 5 out of 5 by from My Mare eats it readily! I bought this product to see if it will help my mare's muscles relax. She is so tight. I have seen some progress. I just add this to her oats and she's eaten all of it form the start!
    Date published: 2016-02-17
    Rated 5 out of 5 by from Works! I have been using this product for my horse for about 4 months or so. My vet had recommended it for me nearly a year ago, I just hadn't got around to using it. On this supplement, my horse has gained lots of topline and looks incredibly muscular and fit. It did take a little while for his picky eater self to adjust to the powder in his food, but he eats it now. Just took a couple weeks for him to accept the taste. If you have an excessively picky eater, may not be the supplement for you, but if your horse will eat it, its a great product!
    Date published: 2016-02-17
    Rated 5 out of 5 by from Excellent product I have used Tri Amino for at least 5 years for several horses. Most horses don't get enough of these amino acids in their normal diet. My horses retain their muscle tone, even when on stall rest. They return to work more easily, with less soreness and faster recovery. If your horse is in training, it is essential. For those who have a difficult time getting horses to eat this - just mix with your choice of senior feed (not pellets - nothing sticks). A handful or two of senior, mixed with the Tri Amino and a few drops of water will prevent your finding the powder at the bottom of the feeder.
    Date published: 2016-02-04
    • y_2017, m_5, d_18, h_20
    • bvseo_bulk, prod_bvrr, vn_bulk_1.0.0-hotfix-1
    • cp_2, bvpage2n
    • co_hasreviews, tv_17, tr_136
    • loc_en_US, sid_8489, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_smartpak

    Q & A

    Healthy Horses  ❤  Happy Riders