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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.

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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!
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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.
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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.
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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 "SmartPak Strips" 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 "SmartPak Strips" to add this supplement to your horse's current order or enter a different horse name.
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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)
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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 "SmartPak Strips" 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 "SmartPak Strips" to add this supplement to your horse's current order or enter a different horse name.
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+
Order within and
have it by
Shipping to
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Economical probiotic formula

  • Lactobacillus plantarum, Enterococcus faecium, Lactobacillus casei & Lactobacillus acidophilus
  • The world's most widely recognized, researched & used brand of DFM (direct-fed microbial)

Probios powder is a probiotic supplement for horses that contains guaranteed levels of Lactobacillus plantarum, Enterococcus faecium, Lactobacillus casei, and Lactobacillus acidophilus. Probios is the world's most widely recognized, researched, and used brand of DFM (direct-fed microbial).

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

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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.

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Ingredients

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

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Instructions for Use:
Horse Weight Recommended Amount Loading Amount

Clinical Research

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    Reviews

    Probios Powder is rated 4.8 out of 5 by 230.
    Rated 5 out of 5 by from Great product My trainer recommended this product five years ago. It's great for gut health.
    Date published: 2019-10-23
    Rated 5 out of 5 by from Great product My trainer recommended this product five years ago. It's great for gut health.
    Date published: 2019-10-23
    Rated 4 out of 5 by from Great product I have been using this twice a week and has completely cleared up my horses loose stool.
    Date published: 2019-10-19
    Rated 4 out of 5 by from Healthy Horse I bought this a month ago so happy now my horse has healthy gut sounds.
    Date published: 2019-08-28
    Rated 5 out of 5 by from I bought this a month ago to use in conjunction with front guy ulcer relief. Works well. Happier horse.
    Date published: 2019-06-18
    Rated 2 out of 5 by from Didn’t help at all My gelding has chronic diarehea and my vet gave us Probios. Nothing got better and I was very disapointed, atleast it was pretty cheap. But I would not buy again
    Date published: 2018-10-15
    Rated 5 out of 5 by from I purchased the probiotics because my 32yo gelding had been on antibiotics for a month and his appetite was decreasing fairly rapidly. He had to be on them for at least another month. Knowing how hard antibiotics can be on the stomach, decided to see if they would help. After being on the probiotics for about 1 1/2 weeks his appetite has returned to normal.
    Date published: 2018-08-27
    Rated 5 out of 5 by from great product reasonably priced, horse eats it up with his other feed
    Date published: 2018-08-26
    Rated 5 out of 5 by from Solved problems and great price Tried on my mare who was having diarrhea every time we got new shipment of hay in. Super sensitive to food changes. After a couple days on this she was completely back to normal. Now on maintenance dose for over year and never had runny stool since!!
    Date published: 2018-05-29
    Rated 5 out of 5 by from Great price for the size! Trust smartpak to always send your order on time so your horse doesn't miss a dose. Great price and free shipping!
    Date published: 2018-03-19
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    Q & A

    Healthy Horses  ❤  Happy Riders