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 1-800-461-8898

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!

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.
Putting your horse's supplements on AutoShip helps you take great care of your horse, so we take great care of you with SmartPerks! When you order your horse's supplements on AutoShip, 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 individual AutoShip supplement or horse's SmartPaks must be over $40. Some exclusions apply.
Visit SmartPak.com/SmartPerks or call 1-800-461-8898 for details.
Because you have your horse's supplements on AutoShip, you 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 syncing them with your AutoShip order, 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!


Corta-Flx, Inc. — Item #11526
Our Price: List Price:
Our Price: Our Price: Sale Price: : $ (%) :
Member Price:
(Members save 5% at SmartPak)
SmartPerks Price:
(Because you have supplements on AutoShip, you save an extra 10% on this and all other SmartPak tack & apparel items!)
Your Price:
(You save 5% as a member of . And, because you have supplements on AutoShip, you save an extra 10% on this and all other SmartPak tack & apparel items!)
SmartPerks Price:
(Because you have supplements on AutoShip, you can save an extra 10% on this and all other SmartPak tack & apparel items! Enter promo code PERKS at checkout.)
Your Price:
(You save 5% as a member of . Because you have supplements on AutoShip, you can save an extra 10% on this and all other SmartPak tack & apparel items! Enter promo code PERKS at checkout.)
SmartSuggestion Bucket (Learn why)
Free Shipping Thanks To
This item may be eligible for
Choose size & ship frequency

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!

AutoShip & Save
You'll love our AutoShip because it's:
  • Focused on healthy , because consistency is key
  • Easy to snooze or cancel online, anytime
  • Totally flexible - edit your order as often as you'd like
  • Your VIP pass to FREE SmartPerks benefits
PLUS! You'll save 5% on every shipment if you order this product on AutoShip
The frequency you selected is not eligible for SmartPerks benefits that come with AutoShip supplement orders. In order to get benefits like free shipping and 10% off, set this product to ship at least every days. What are SmartPerks?

Field trials showed positive results

  • Provides calcium & magnesium to help neutralize excess gastric acid
  • A field trial conducted with Thoroughbreds at a race training facility showed positive results
U-Gard™ is a calcium supplement for horses in training and competition. Field trials prove U-Gard™ highly effective on gastric lesions.

View our Gastric Supplements Comparison Chart 


Guaranteed Analysis:
(Maintenance Dose = 1 scoop (1 oz) daily)
  • Calcium (min)
  • Calcium (max)
  • Magnesium (min)
Ingredients: : Kaolin, Calcium Carbonate, Magnesium Hydroxide Glycine, Diatomaceous Earth, Zinc Oxide, Methylcellulose, Silicon Dioxide, Dried Apple Pectin Pulp, Aloe Vera Gel, Sodium Propionate (a preservative), Iron Oxide, Natural and Artificial Flavors.


Instructions for Use:
Feeding Directions: For an average 1,000 lb (500 kg) horse, feed 1 oz (28 g) twice daily with the horse's regular feed or mix with a small amount of water and give orally. Feed to others according to body weight, less for smaller horses, ponies and foals, and more for larger breeds. (1 oz [28 g] measure by weight enclosed)
You Might Like
    Customers Also Shopped For
    "In nature, horses graze and secrete saliva constantly, ...
    "In nature, horses graze and secrete saliva constantly, which buffers the stomach from gastric acid. When horses are stalled, this natural buffering mechanism is disrupted, and acid indigestion often results. Neigh-Lox is designed to support normal stomach function and promote ...
    "Support your horse’s digestive tract from beginning to ...
    "Support your horse’s digestive tract from beginning to end. Neigh-Lox Advanced helps to maintain normal stomach function and digestive tract health. This formula includes: • Gastric buffer and coating agents to buffer excess gastric acid and support stomach tissues • ...
    "SmartGI Pellets provide basic support for the whole ...
    "SmartGI Pellets provide basic support for the whole digestive tract, including both stomach and hindgut. This formula combines all the active ingredients of both SmartGut Pellets and SmartDigest, at a 15% savings over purchasing those two supplements individually. Glutamine, soothing ...
    "SmartGut provides comprehensive gastric support through a selection ...
    "SmartGut provides comprehensive gastric support through a selection of ingredients that help maintain stomach health. These include ingredients to neutralize excess gastric acid, probiotics, prebiotics, soluble fiber, the amino acids L-glutamine and glycine, soothing herbs and other safeguards for a ...
    "SmartGut Ultra is clinically researched and shown to ...
    "SmartGut Ultra is clinically researched and shown to support gastric health. In a university-led research study, SmartGut Ultra helped maintain stomach health in horses under stress. This enhanced formula includes GastrAvert®, a proprietary blend of sea buckthorn, glutamine, aloe vera, ...
    "SUCCEED Digestive Conditioning Program is a once-a-day Functional ...
    "SUCCEED Digestive Conditioning Program is a once-a-day Functional Feed™ supplement program that provides a natural, nutritional approach to digestive health. SUCCEED delivers highly specialized nutrients that support the healthy structure and function of the entire digestive tract – including the ...


    out of 5
    91% 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:


    U-Gard is rated 4.5 out of 5 by 248.
    Rated 3 out of 5 by from Satisfactory My OTTB isn't as sensitive around his belly compared to a couple of weeks ago.
    Date published: 2013-04-23
    Rated 5 out of 5 by from Great product U Guard has helped my rescue mare recover from ulcers. She is very happy and comfortable now. I use this product on both my horses whenever they need extra protection for their stomachs due to stress or medication. I also sent U Guard to a rescue and they report it has helped one of their older horses feel better. That's a great recommendation to me.
    Date published: 2013-04-16
    Rated 5 out of 5 by from Works quickly! A horse came in my barn that showed all the classic signs of ulcers, would eat and stop, eat and stop, and cribbed when she ate. Put her on U-Gard and within days she almost completely stopped cribbing! When does that ever happen?! And she started eating normally. I do feel this may not be a good product for long term use, so I have overhauled her diet, which seems to be working. I keep this magic pink powder around, though, just in case. Plus, it can be good to give pre-ride to help combat acid-splash.
    Date published: 2013-04-14
    Rated 4 out of 5 by from Noticed Changed I have noticed that my gelding is calmer, the mare does not seem to showing any changes, but she is kinda crazy anyway.
    Date published: 2013-04-09
    Rated 5 out of 5 by from Great Product for Many Ailments Although I've been taught that ulcer supplements like this don't work, I still love it. I feed it to my old horse and a teenaged thoroughbred who has trouble keeping weight on. Both of them eat it well and they really help. Right now, I'm also giving it to my 29 year old arabian who has been battling ulcers. We're giving it orally diluted in water because he won't eat anything on his feed right now (we think he's afraid to hurt his stomach again). I love it and would recommend it to anyone looking for something to ease some stomach pains or help keep weight on a horse.
    Date published: 2013-03-04
    Rated 3 out of 5 by from not needed? I bought this for a off the track thoroughbred who was very sensitive to grooming, couldnt keep weight on, constantly nibbling at his sides and mildly girthy. I figured that rather then having the vet come out and scope him for ulcers, I would try to prevent them in general. Unfortunately, I saw no change in him. I dont know if this means that he doesnt have any ulcers or that the product did not work but based on the fact that it came VERY highly recommended to me I am going to assume he doesn't need it. He is a picky eater and although it is a lot of pink powder, he ate it all up. I fed it to him with his beet pulp so it was mixed in with water.
    Date published: 2013-01-29
    Rated 5 out of 5 by from Works perfectly for my horse! I have a horse with allergies to alfalfa so he can't eat anything pelleted and he loves this supplement. He doesn't have ulcers but he had an acidity problem so my vet recommended this product and he's been on this product twice a day now for about 6 years. I've had to increase the dose from 1/2 scoop am/pm to 1/2 scoop am and 1 scoop pm but only in the last year. I'd definitely use it on any of my horses that need the stomach acidity protection.
    Date published: 2013-01-25
    Rated 5 out of 5 by from Good Product/Great Value Bought this product for my OTTB. He has a tendency to develop ulcers. He has shown improvement in his condition and attitude since I began giving him this product. I think the product smells wonderful. However, he is a very picky eater and will sort out powders. He eats this powder better than any other powder I have given him. This powder seems somewhat "sticky" and almost coats his feed. He is not able to sort this out as easily. Great value. I will continue to use this product and recommend to friends. Thanks to Smart Pak for the WONDERFUL service!
    Date published: 2013-01-16
    Rated 5 out of 5 by from Awesome product Since starting my quarter horse on this we have lessened his ulcer outbreaks.
    Date published: 2012-11-09
    Rated 5 out of 5 by from Worth My Horses Weight in Gold! U-Gard Pellets are AMAZING. I started two of my older (one is a 19 y/o appendix, the other 21 y/o QH) on this product and their attitudes about life in general changed greatly! Both were girthy & irritable when saddling, the appendix was a fussy eater... I started them on this deciding it was a cheap alternative to having the vet out to tell me what I assumed I already knew (I know I know... *insert lecture here* ;)) they will not be off of it and since then I've recommended it to numerous other horse people as many of our horses have problems we're unaware of! I will say I had both pellets for the Appendix & powder for the QH -- switched off powder -- so much easier & less waste.
    Date published: 2012-11-06
    Rated 5 out of 5 by from Miracle Product! Started my EXTREMELY hard keeper on this (along with another digestive aid) a couple months ago and he's done nothing but improve since! He's rocking "hunter round" and even had his grain cut back an entire scoop! Loading dose is a lot of powder, which he wasn't fond of, but totally worth the extra mixing!
    Date published: 2012-11-05
    Rated 4 out of 5 by from Used on a young horse while started in training. I believe it worked to prevent ulcers during the stress of beginning work.
    Date published: 2012-10-27
    Rated 5 out of 5 by from Worked well!! My 6 y/o OTTB was becoming more and more girthy and irritable while tacking. I decided to try U-Gard from the recommendation of a friend. It was one of the more cost effective treatments, especially when purchased in the larger container. I am happy to report that my horse seems to be much happier and content with U-Gard in his system.
    Date published: 2012-10-26
    Rated 2 out of 5 by from Not in the same class as GastroGard There might be a situation where this product is the right one, but it certainly was NOT strong enough for a horse having a flare up. This was our first time in 18 years together where ulcers had been a problem, so I had to learn the hard way the right way to take care of them. If you can't afford the GastroGard and don't want to order generic from overseas, get a script for Rinitadine from your vet.
    Date published: 2012-09-17
    Rated 4 out of 5 by from Great Product This supplement has helped my high strung TB immensely. He's putting on weight, cribbing less, and his attitude has improved.
    Date published: 2012-08-31
    Rated 5 out of 5 by from Well Worth It After treating my OTTB gelding for ulcers, I decided I wanted to put him on a supplement to help with his tummy issues. I chose U-Guard and couldn't be happier! His ulcers cleared up and we have had no issues with them since. He eats it up and is all around a much happier horse. He used to be sensitive on his tummy, but now I can brush and touch him with no negative response. I was so glad I was able to find an easy, convenient, and affordable way to help him feel better every day! If you have any tummy issues with your horse, I definitely recommend trying U-Guard!
    Date published: 2012-08-03
    Rated 5 out of 5 by from Great Product Has helped my mare regain her appetite after developing ulcers
    Date published: 2012-07-21
    Rated 5 out of 5 by from Really Works My 7 y/o gelding has had some chronic "tummy issues"... down to colic when left on grass for a half hour. After treating for ulcers, I started him on U-Gard and have had great results. He's back to his bouncy, happy self. Not only that, but after escaping his dry lot onto the grass one early morning for possibly an hour or two, no colic! I'm so thrilled that U-Gard has helped him so much (not to mention saving me a vet call!).
    Date published: 2012-06-19
    Rated 4 out of 5 by from Supports my horse during ulcer treatment and shows Began to use two years ago to aid in ulcer prevention and continue to use during ulcer flare-ups and treatment during show seasons. Love this product!
    Date published: 2012-05-07
    Rated 4 out of 5 by from Great product I have a horse with Ulcer issues, after using starting this product, his flares have become less and he is eating better than he has in a long time.
    Date published: 2012-05-01
    Rated 5 out of 5 by from Effective! I wish someone had told be about ulcers before. My National Show Horse has been anxious and high strung for as long as I can remember. He also always had a habit of trying to eat sand or dirt and, despite unlimited access to quality hay and a regular worming and health program, his coat was poor and dull and he was being fussy with his food. I'd previously had him checked out by two vets and a nutritionist but no one knew why. An eventer suggested that he sounded like an ulcer candidate. I put him on this product and saw improvement within two weeks! One month later and he's not eating dirt any more, he isn't as cinchy or anxious under saddle, he's letting me pet him, and is asking for carrots. Initially I added molasses to the bucket to transition him to the taste but now he's eating it without. In conjunction with 1 oz. of this 2x a day in his grain I have put all of the feeders on the ground so that his stomach will stay "moist" in its internal acid (to prevent more ulcers), soak his hay before feeding, and have added in 2 qt. ground stabilized rice bran + 1 qt. shredded beat pulp to his morning and afternoon supplementation for weight gain. It's so good to see him digging in to his food now! Highly recommended as an affordable test and/or treatment to see if your horse's attitude has a simple physiological root cause.
    Date published: 2012-04-17
    Rated 4 out of 5 by from Seems okay My mare was treated for ulcers and as soon as she came off the vet-prescribed medicine, I put her on U-Gard as a preventative. She eats it well (surprisingly) and hasn't had ulcer recurrence. I don't know if it is because of U-Gard or because of her change in stress levels but I'm leaving her on it as a precaution. Could be cheaper but it's priced better than other ulcer supplements.
    Date published: 2012-03-31
    Rated 4 out of 5 by from Wonder Powder I use this product in the more direct way indicated in the products description which is to mix some water into the powder and use an oral syringe for a more direct contact with the stomach. This method will give you faster results from my experience. It has done absolute wonders for Wyatt's appetite and I am completely satisfied with this product. I used to use Neigh-Lox, and Neigh-Lox was time consuming to feed 2-3 times a day. U-Guard is a great substitute.
    Date published: 2012-03-23
    Rated 4 out of 5 by from Worked Great with Low Price It seems to be working better the the more expensive supplement that I have had my guy on. I am very happy with the product and the price is beyond reasonable.
    Date published: 2012-03-21
    Rated 5 out of 5 by from Works! My wonderful barrel mare, unknown to me, suffered from ulcers & eventually coliced. She underwent surgery for colic and that's when we found ulcers. Her surgeon recommended U-Guard for her ulcers and we've used it for the last 4 years without any further problems with ulcers! I have all of my horses on it as a preventative measure. Note, though, that picky eaters may not like powder. My one picky eater didn't so I put her on the U-Guard pellets and she eats it just fine!!
    Date published: 2012-03-19
    Rated 4 out of 5 by from Works great for my horse My horse had very soft manure and wet gases. UGuard solved the "liquid" issue in 24 hours. I will order the next container in pellets, as the powder is very fine and doesn't stick very well to the supplements I am feeding him.
    Date published: 2012-03-13
    Rated 4 out of 5 by from Suggested by a friend who uses U-Guard Just started on this product following up a months worth of vet prescribed powder treatment for ulcers for my show Arabian gelding that was developing a very cranky attitude. After the strong stuff for a month he was no longer cinchy, and I have not seen a comeback of the crankyness or being cinchy since being on UGuard - need more time to see if it lasts. He does tend to leave some powder behind, I might switch to pellets.
    Date published: 2012-03-13
    Rated 5 out of 5 by from Cannot live without this We have been using this at our barn for 2 yrs we can tell when the horses have been off a day. Some horse eat it without problem others will eat it with looks. Over all great for the price and best of all it works. We use this as a preventive for ulcers.
    Date published: 2012-03-12
    Rated 4 out of 5 by from Worth a try to figure out problem Gave this a try for an irratable horse. Did not make a difference BUT, now not thinking ulcers!!
    Date published: 2012-03-08
    Rated 3 out of 5 by from PELLETS WORTH THE EXTRA $$$ My gelding eats the powder right up, but he is not a picky eater and just assumes that whatever is in his grain dish is meant to be consumed, including whole bute pills ;-) That being said, the powder is a pain unless you make the meal into a mash first, then stir the powder in carefully. Its VERY FINE and will blow everywhere if you try to feed it dry. I feed wet grain anyways, so the powder works fine for me. However, if you feed grain dry, do get the pellets or your powder will be going everywhere but into the horse's mouth. I can't attest to the product working as intended because he hasnt' been on it long enough.
    Date published: 2012-03-07
    • y_2018, m_1, d_18, h_7
    • bvseo_bulk, prod_bvrr, vn_bulk_2.0.6
    • cp_4, bvpage2n
    • co_hasreviews, tv_22, tr_226
    • loc_en_US, sid_1526, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_smartpak
    • bvseo_sdk, net_sdk,
    • CLOUD, getContent, 188ms

    Q & A

    Healthy Horses  ❤  Happy Riders