Acti Flex K9 32 oz

Item# 4988
Qualifies for FREE standard shipping on orders over $70
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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
  • Boswella 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 32 reviews)

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!! "
September 15, 2016
"Great stuff!This actually made a Big difference in how our dog acts. Is acting like her younger self again! "
April 12, 2016
"Wonderful product! Made all the difference in my dog. When she quit going on trail rides with me I realized that I had to do something. After just 2 weeks she was a completely different dog...and we are back to our 2 mile trails! Thanks Cox Vet Labs!"