PLEASE NOTE: You may experience errors on our site when using Internet Explorer 10 or lower. Please consider updating your browser, or download Google Chrome.
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.
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!

Our experts are available
Monday – Thursday 9:00 am – 5:00 pm EST
Friday 9:00 am – 3:00 pm 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&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:
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.

Qualifying Items

Qualifying items are eligible for free shipping, every day. Look for the badge below on the product page to confirm that your item ships free!
Free Shipping

Ride Along Items

Ride Along items are eligible for free shipping when shipped with your next AutoShip order or any qualifying item. Look for the badge below to identify a Ride Along item.
Ships free with a qualifying item

SmartMuscle® Mass Pellets

(Learn why)
1. Packaging/Size
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?
2. Customization & Shipping Frequency
You'll love our AutoShip because it's:
  • Focused on healthy s, 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 % on every shipment if you order this product on AutoShip PLUS! You'll save % on every shipment if you order this product on AutoShip
We're bringing you this product at the lowest price allowed by the manufacturer so you won't find it cheaper anywhere else. This also means we can't apply any further discounts or promotions.
These are for:
Sign in to choose an existing
These are for:
Sign in to choose an existing
Maintenance dose

Choose AutoShip to become eligible to apply for the FREE Colicare Program after checkout.

ColiCare is a FREE veterinarian-directed wellness program that provides enrolled horses with up to $10,000 of colic surgery reimbursement.

How Does it Work?

  1. Order any ColiCare Eligible Product in SmartPaks
  2. Fill out the quick application online- no paperwork required!
  3. Complete the Annual Wellness Requirements every year:
  • Physical exam performed by your vet
  • Dental exam performed by your vet
  • Vaccinations administered by your vet
  • Deworming program developed with your vet that includes at least one fecal test and two deworming administrations per year

Provided you meet the requirements above, if your horse undergoes any type of colic surgery, you'll be eligible for up to $10,000 of reimbursement.

Learn More »
  • This horse already has an existing AutoShip SmartPak. Please select the "AutoShip" checkbox or enter a different horse name.
  • SmartPak Pouches are currently only available for horses receiving one daily dose supplement, but the horse you've selected is already receiving other daily dose supplements. Please select "SmartPaks" to add this supplement to your horse's current order or enter a different horse name.
Please call 1-800-461-8898 to order this product.
New ship same day!
These are for:
Sign in to choose an existing
  • This horse already has an existing AutoShip SmartPak. Please select the "AutoShip" checkbox or enter a different horse name.
  • SmartPak Pouches are currently only available for horses receiving one daily dose supplement, but the horse you've selected is already receiving other daily dose supplements. Please select "SmartPaks" to add this supplement to your horse's current order or enter a different horse name.
-
+
Order within and
have it by
Shipping to
Add these items to your cart to get your estimated arrival date.
Shipping to
These are for:
Sign in to choose an existing
These are for:
Sign in to choose an existing
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.
( Cups / Meal)
These are for:
Sign in to choose an existing
Maintenance dose

You're eligible to apply for our FREE ColiCare Program after checkout.

ColiCare is a FREE veterinarian-directed wellness program that provides enrolled horses with up to $10,000 of colic surgery reimbursement.

How Does it Work?

  1. Order any ColiCare Eligible Product in SmartPaks
  2. Fill out the quick application online- no paperwork required!
  3. Complete the Annual Wellness Requirements every year:
  • Physical exam performed by your vet
  • Dental exam performed by your vet
  • Vaccinations administered by your vet
  • Deworming program developed with your vet that includes at least one fecal test and two deworming administrations per year

Provided you meet the requirements above, if your horse undergoes any type of colic surgery, you'll be eligible for up to $10,000 of reimbursement.

Learn More »
  • This horse already has an existing AutoShip SmartPak. Please select the "AutoShip" checkbox or enter a different horse name.
  • SmartPak Pouches are currently only available for horses receiving one daily dose supplement, but the horse you've selected is already receiving other daily dose supplements. Please select "SmartPaks" to add this supplement to your horse's current order or enter a different horse name.
Please call 1-800-461-8898 to order this product.
New ship same day!
These are for:
Sign in to choose an existing
  • This horse already has an existing AutoShip SmartPak. Please select the "AutoShip" checkbox or enter a different horse name.
  • SmartPak Pouches are currently only available for horses receiving one daily dose supplement, but the horse you've selected is already receiving other daily dose supplements. Please select "SmartPaks" to add this supplement to your horse's current order or enter a different horse name.
-
+
Order within and
have it by
Shipping to
Add these items to your cart to get your estimated arrival date.
Shipping to

Which horses benefit from muscle building support?

Every horse owner wants their partner to have strong, healthy muscles to power performance; whether that means jumping the course, winning the halter class, or hitting the trail. Supplements in this category provide the building blocks needed for lean muscle development and are a great way to ensure your horse your horse has the right nutritional support to make the most of his exercise program.

100% Happiness
Guarantee
HappinessGuarantee
At SmartPak, your happiness is at the core of everything we do. We back every order with our 100% Happiness Guarantee so that you can shop with confidence. If you're ever less than thrilled with your purchase, just let us know and we'll refund you right away. No hassles, no hoops, no kidding.

Other ways to support success

(based on )
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.

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.

  • Review 0
  • Votes 0
  • Discipline:
  • Expertise:
  • Product
    Experience:
  • Competitor:
Quality
Value
Palatability

Helpful?

Ingredients

(Maintenance Dose = )
Ingredient Per Serving Per Pound
How the Ingredients Work
  •  
  •  
  •  

Instructions

Order in SmartPaks
Instructions for Use:
Horse Weight Recommended Amount Loading Amount

Research

You Might Like
    Customers Also Shopped For
    For use in horses in training and sales ...
    Description:
    For use in horses in training and sales preparation. Body Builder has been used by some of the best in the industry successfully sine 1985. Rice bran oil and rice bran oil extract contain the natural compound gamma oryzanol. Body ...
    IN-SYNC 4 Pellets are designed to help support ...
    Description:
    IN-SYNC 4 Pellets are designed to help support efficient muscle function, immune system health, and normal blood cell production. The comprehensive formula includes lysine and methionine for muscle development; thiamine, niacin, riboflavin, and vitamin B12 for red blood cell production; ...
    Perfect Prep Lactalex supports optimal muscle function in ...
    Description:
    Perfect Prep Lactalex supports optimal muscle function in hard-working horses. It contains riboflavin, pantothenic acid, thiamine, niacin, and lipoic acid, which are nutrients necessary for the formation of acetyl coenzyme A. Acetyl coenzyme A is involved in the cycle of ...
    Four Perfect Prep EQ™ Lactalex™ Powder Packets: Feed ...
    Description:
    Four Perfect Prep EQ™ Lactalex™ Powder Packets: Feed single packet. 4+ feedings morning and night prior to performance. Two Syringes of Perfect Prep EQ™ Lactalex™ Paste: Feed 1 full syringe 12 hours prior to performance and 30 cc every 12 ...
    Antioxidants may help your horse's body fight the ...
    Description:
    Antioxidants may help your horse's body fight the damaging effects of free radicals and oxidative stress. SmartAntioxidant Pellets are a potent, cost-effective antioxidant formula containing vitamin C, vitamin E, grape seed extract, super oxide dismutase and citrus bioflavonoids. SmartAntioxidant Pellets ...
    Dealing with respiratory problems can be stressful, especially ...
    Description:
    Dealing with respiratory problems can be stressful, especially since they can impact your horse’s overall health and performance. In addition to veterinary care and a management plan, the right combination of ingredients can also help support healthy lung function in ...
    Nothing can ruin a day at the barn ...
    Description:
    Nothing can ruin a day at the barn faster than bothersome bugs. Luckily for you and your horse, supplements in this category provide additional defense against these pesky pests. They help discourage flies from bothering and biting your horse, making ...

    Reviews

    SmartMuscle® Mass Pellets is rated 4.5 out of 5 by 331.
    Rated 4 out of 5 by from Really helped add weight and muscle! I started my horse on this about a month ago and it’s really helped her gain muscle and weight! I was struggling to have her put weight on, but we’re finally seeing results after starting her on this!
    Date published: 2020-04-03
    Rated 2 out of 5 by from Nothing I was hoping this would help my pleasure gelding build up his butt/ However after 2 months I do not see any improvement. He had no problems eating it. Just did not do anything.
    Date published: 2020-03-15
    Rated 4 out of 5 by from Quick results I bought this two months ago and I am very pleased with the results. I am already seeing a difference in my boy and his body type.
    Date published: 2020-03-05
    Rated 3 out of 5 by from Slight improvement I’ve only been using for a little over a month and have seen a slight improvement, but I haven’t been able to exorcise my gelding because of all the mud and ice
    Date published: 2020-02-07
    Rated 5 out of 5 by from Bought more Thought I'd try the SmartMuscle Mass Pellets to help support my horse's topline, which needed work. Of course that's a gradual process, but I actually started noticing a difference within a couple weeks of starting him on these. It's hard to say how much of the change is attributable to the supplement versus training/exercise, but I'm confident enough that this supplement is helping that I bought more. Probably won't keep my guy on them forever, but for now I feel it's money well spent. Also, he gobbles them right down (though he's not a picky eater).
    Date published: 2020-01-20
    Rated 5 out of 5 by from It’s working! I am on my 2nd month of this product and my TWH that I got from a kill pen is putting on weight and looking more muscular. Can’t wait to see how he looks this spring after he sheds out. He eats it without batting an eye.
    Date published: 2020-01-15
    Rated 5 out of 5 by from Awesome!! I used this supplement from June to August and saying my horse transformed is no understatement. When I bought him he needed a lot of topline and rounding out. After this I got complements from everyone in the barn and on the trail about how great he looked. I'm really happy with what this product did to my horse. The first picture is when I started it in June, and the second is in August.
    Date published: 2020-01-07
    Rated 4 out of 5 by from Good Product! I have my 18 yr old TB mare on this for the winter along w\ her ProForce Fuel grain and her topline is amazing! Her shoulders have gained alot of muscle and she does not look 18 years old. This is a good product for those horse trying to build muscle who are older!
    Date published: 2019-12-24
    Rated 5 out of 5 by from Just what she needed Hi, I chose the smart muscle because I personally loose flab with a good protein diet while controlling carbs. I thought my somewhat chunky QH mare would do likewise. And yes, her weight isn’t changed, but her crest is reduced and her shoulders are loosing flab and gaining muscle. Her top line is improving, pulling up that belly. Years of exercising while on carb restriction and 30% balancer did not give me that result. She would loose weight and crest, but not get a top line, she sagged in the belly, and was anxious. The combination of quiescence and smart muscle gave me a less cresty less spooky mare with nicely developing muscles. Poor girl was an athlete without enough fuel to build the muscles her genetics called for! Thanks so much for your wonderful products.
    Date published: 2019-09-25
    Rated 5 out of 5 by from I bought this product for my 6 ye old thoroughbred to see if it would help fill him out and in 6 weeks I can see a difference
    Date published: 2019-06-29
    • y_2020, m_4, d_9, h_18
    • bvseo_bulk, prod_bvrr, vn_bulk_3.0.5
    • cp_1, bvpage1
    • co_hasreviews, tv_22, tr_309
    • loc_en_US, sid_11814, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_smartpak
    • bvseo_sdk, net_sdk, 3.2.0.0
    • CLOUD, getContent, 15ms
    • REVIEWS, PRODUCT

    Q & A

    Healthy Horses  ❤  Happy Riders