MPCO One AC Powder Horse Supplement, 7-oz jar

Deal
Skip image gallery
Slide 1 of 5
$17.39 First Time Autoship Price
this order
Save 40% (up to $40) today when you set up Autoship. 
$27.54 Autoship Price
(-5%) future orders
  • Keep saving 5% on every order
  • Get deliveries on your schedule
  • Skip, change, or cancel anytime
$28.99 Chewy Price
($0.71 /serving)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card + Free Shipping with code: WELCOME
In Stock
FREE 1-3 day delivery on first-time orders over $35
Free 365-day returns

No interest if paid in full in 6 months on PayPal purchases of $149+. .

About This Item

Details

  • Specially designed for horses who suffer from performance robbing anhidrosis, a condition where they have a reduced ability to sweat.
  • Helps the sweat glands function properly by remedying the imbalance of dopamine to the noradrenaline/adrenaline complex.
  • Contains niacin, ascorbic acid and L-tyrosine.
  • Used in field tests at the University of Florida.
  • Comes in an easy-to-feed powder.

Ingredient Information

Feeding Instructions

Frequently bought together

Questions & Answers

2 Customer Questions

Is this safe for pregnant mares?

Answer by Chewy • Aug 24, 2025
Although no problems have been reported regarding feeding ONE AC to pregnant mares, it is recommended to check with your veterinarian before adding anything new to the diet.

Have there been issues with horses that will not eat their feed with this in it? Can it be non-palatable?

Answer by Chewy • May 24, 2025
ONE AC is all vitamins and amino acid with no flavoring or other added ingredients, so it can be a bit non-palatable. It can be mixed with water or apple sauce.
Reviews
Write a Review
4.8
Rated 4.8 out of 5 stars
92 Ratings
Terms & Conditions

25 Customer Reviews

Rated 5 out of 5 stars
By Brigitte on Oct 21, 2025

Really helps control anhydrosis

I have used this product solely for 10+ years. With consistent use, it has helped me to manage my horse’s anhydrosis in Florida and Georgia.

I have used this product solely for 10+ years. With consistent use, it has helped me to manage my horse’s anhydrosis in Florida and Georgia.

Rated 5 out of 5 stars
By Dawn on Dec 3, 2025

Helped with not sweating.

Vet recommend this and acupuncture. Horse was sweating again with in 48 hours.

Vet recommend this and acupuncture. Horse was sweating again with in 48 hours.

Rated 5 out of 5 stars
By Roberta on Jul 15, 2025

Works great!!!

This stuff has kept my horse sweating and very comfortable he doesn't really ever go through that heavy breathing anymore. I use this year around hot or cold just

This stuff has kept my horse sweating and very comfortable he doesn't really ever go through that heavy breathing anymore. I use this year around hot or cold just to keep it in his system. I love it

Rated 5 out of 5 stars
By Libby on Jul 19, 2025

Best price around and it supplement that helps not sweating

Chewy has the best price on this item and auto ship makes it so easy to never run out. This is the only thing that helps my TB sweat during the summer in Florid

Chewy has the best price on this item and auto ship makes it so easy to never run out. This is the only thing that helps my TB sweat during the summer in Florida.

Rated 1 out of 5 stars
By Denise on Oct 29, 2025

Did not help him sweat

Unfortunately this product did not work on my horse.

Unfortunately this product did not work on my horse.

Rated 5 out of 5 stars
By Bronwyn on Sep 11, 2025

This is an item I need quickly and a recent with manufacturing date!

My horse who lives in Fl. would not survive the summer without One AC!

My horse who lives in Fl. would not survive the summer without One AC!

Rated 4 out of 5 stars
By Beth on Jul 18, 2025

Helps them sweat

I have had numerous horses on this and the key is to give it before they quit sweating or before the real heat!

I have had numerous horses on this and the key is to give it before they quit sweating or before the real heat!

Rated 5 out of 5 stars
By Bettina on Jun 9, 2025

One AC

My pony needs this every summer and I can always count on Chewy getting it to me in time. Being able to set the parameters for the AutoShip makes it super conve

My pony needs this every summer and I can always count on Chewy getting it to me in time. Being able to set the parameters for the AutoShip makes it super convenient.

Rated 5 out of 5 stars
By Julianna on May 25, 2025

Required for summers in Florida.

My anhidrosis mare started sweating after exercise after 3 months of use. She still is uncomfortable in the summer, but now she cools herself off a little faste

My anhidrosis mare started sweating after exercise after 3 months of use. She still is uncomfortable in the summer, but now she cools herself off a little faster.

Rated 5 out of 5 stars
By Jessica on Jun 3, 2025

Best price online

This is a great supplement for those non sweating equines. This was priced better than anywhere else and event better with my chew discount.

This is a great supplement for those non sweating equines. This was priced better than anywhere else and event better with my chew discount.