Acti Flex K9 32 oz

Item# 4988
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Your favorite joint supplement for horses now formulated for dogs. Aids in the protection and repair of overused joints or joint problems in hips, back and legs usually associated with arthritis as dogs age. Tasty Beef Flavor.


  • Glucosamine Sulfate 180mg/ml
  • MSM 50mg/ml
  • Ester C 35mg/ml
  • HA 30mg/ml
  • Boswellia 2mg/ml

Feeding Directions:

  • Dogs up to 20lbs., give 3 ml per day
  • Dogs 21-40 lbs., give 5ml per day
  • Dogs 41-70 lbs., 7.5ml per day
  • Dogs over 71lbs., give 10ml per day.

Cox Veterinary Laboratory products cannot be shipped outside of the contiguous United States

** No longer contains Type II Collagen

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Customer Reviews

Average Rating:

(based on 34 reviews)

August 15, 2018
"I have older dog with arthritis and this supplement has helped him"
May 28, 2018
"I have given my dog Actiflex for the last four years. He had surgery on one leg and were told he would develop arthritis, etc. I wanted to be proactive and make his leg as strong as it can be. I don’t know what he would be without it since he was a little over a year when we started but he is healthy and moves well. He does not live with pain."
March 07, 2018
"Helps my geriatric, arthritic dog so much, she will never be without it!"
Deleon Springs , FL
February 28, 2018
"Love Cox Vet Lab products. I was so impressed with the years of benefit Acti-Flex (equine) provided my senior mare that I tried Acti-Flex K9 for a senior rescue dog. The benefits presented quickly & were profound, both mentally & physically! "
Broadway, NC
November 03, 2017
" I did not know if this would help my dog or not. After using 2 bottles he is no longer limping. I am so thankful! Thanks for your great product!! "