Order within and have it by * in (edit)
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.
SmartPaks help you take great care of your horse, so we take great care of you with SmartPerks! When you order your horse's supplements in SmartPaks, you're automatically* eligible for our FREE SmartPerks benefits, including:
  • Free ground shipping on what you want, when you want it
  • 10% off all SmartPak brand tack, apparel, and gear
  • A free Team SmartPak calendar, exclusive email offers and discounts, and more!
Learn more about SmartPerks
*At least one horse's individual SmartPaks must be over $40. Some exclusions apply.
Visit SmartPak.com/SmartPerks or call 1-800-461-8898 for details.
As a SmartPaks Subscriber, you can get free ground shipping all day, every day on just about everything we sell at SmartPak, thanks to your SmartPerks. The few add-on items we have can be shipped free by synching them with your horse's SmartPaks, shipping on a Barn Saver Shipping day, or by having a group of add-on items that total over $75.

Have a question?
Call 1-800-461-8898 or email CustomerCare@SmartPak.com anytime!
Fluid Action Powder and Liquid
Finish Line — Item #11398
  SmartPaks Over $40 Ship Free!
Free Shipping Thanks To
This item may be eligible for

Oops! Looks like you've already added this item to your order.

Please select a different recipient name if you'd like to create a new order, or give us a call - we're happy to help!

Promotes healthy joints

  • Provides the building blocks of healthy joints
  • 5,000 mg of glucosamine, 2,000 mg of pure MSM, 1,000 mg of vitamin C & 190 mg of yucca
Fluid Action Powder now has 2,000 mg of pure MSM and 190 mg of yucca at the same great price! This formula still contains 5,000 mg of glucosamine and 1,000 mg of vitamin C. Fluid Action Powder is now better than ever for horses in training and older horses with joint issues, and provides great support for all horses.

View our Joint Supplement Comparison Chart 


  • Active Ingredients per ounce (powder formula)
  • Glucosamine HCl
    5000 mg
  • Ascorbic Acid
    1000 mg
  • MSM
    2000 mg
  • Yucca
    190 mg
  • Niacinamide
    110 mg
  • Active Ingredients per ounce (liquid formula)
  • Glucosamine HCl
    5000 mg
  • Ascorbic Acid
    1000 mg
  • MSM
    60 mg
  • Yucca
    29 mg
  • Ginko Biloba
    18 mg
Inactive Ingredients (powder): Corn gluten, Sodium Chloride, Vitamin B6, Vitamin B2, Glucose, Fructose, Vitamin B12, Magnesium phosphate, Calcium citrate, Turmeric powder, Bromelain, Calcium iodate, Aloe Vera powder, Silica gel, Sodium Benzoate.

Inactive Ingredients (liquid): Water, honey, glycerol, citric acid, aloe vera gel, riboflavin (Vitamin B2), pyridoxine hydrochloride (Vitamin B6), cyanocobalamin (Vitamin B12 supplement), sugar, sorbitol, superoxide dismutase, apple cider vinegar, magnesium phosphate, calcium citrate, apple flavor, sodium benzoate, potassium sorbate, boswellia serrata, xanthan gum, sodium saccharin, octacosanol, FD& C red 40 and 3.


Instructions for Use:
Powder: 1000 pound horses- Give one ounce daily.

Liquid: Feed 1 ounce (by weight) daily.

Clinical Research

You Might Like
    Customers Also Shopped For
    "Total Blood Fluids Muscle was developed to replenish ...
    "Total Blood Fluids Muscle was developed to replenish the vital nutrients lost during stress and exercise. Fortified with essential B vitamins, minerals, and iron to help increase oxygen-carrying ability and red blood cell count. Contains branched-chain amino acids to aid ...
    "Recent research has prompted leading equine nutritionists to ...
    "Recent research has prompted leading equine nutritionists to suggest increased dietary intake of Vitamin E. E-5000 is a highly concentrated source of Vitamin E with 5,000 IUs per ounce. View our Antioxidant Comparison Chart Learn More about E-5000"
    "Accel is a carefully balanced multi-vitamin supplement designed ...
    "Accel is a carefully balanced multi-vitamin supplement designed to provide a strong and comprehensive foundation for all horses. It is an excellent source of fat and water soluble vitamins, chelated and conventional minerals, and trace minerals, and is fortified with ...
    "SmartCanine Digestion provides comprehensive support for a healthy ...
    "SmartCanine Digestion provides comprehensive support for a healthy digestive system in your canine companion. This formula contains live microorganisms as well as prebiotics. With the addition of enzymes and amino acids, this formula is ideal for helping to maintain digestive ...
    "FOCUS SR provides all of the benefits of ...
    "FOCUS SR provides all of the benefits of the original SOURCE formula with added support for the aging horse. In addition to a daily serving of SOURCE, FOCUS SR contains antioxidants, vitamins, beneficial microbes, chelated minerals, fatty acids, and enzymes. ...
    "Sand Clear contains psyllium seed husk, a natural ...
    "Sand Clear contains psyllium seed husk, a natural soluble fiber that increases feed ration bulk. Sand Clear includes apple and molasses flavoring horses love. Psyllium contains more soluble fiber than oat bran and wheat bran combined. There is 80% soluble ...
    "One AC powder is a supplement that was ...
    "One AC powder is a supplement that was developed specifically for horses with performance-robbing anhidrosis (reduced ability to sweat). One AC has proven results from a field tests at the University of Florida. Contains ascorbic acid, niacin, L-tyrosine and cobalt ...


    out of 5
    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.

    • Review 0
    • Votes 0
    • Discipline:
    • Expertise:
    • Product
    • Competitor:


    Fluid Action Powder and Liquid is rated 4.8 out of 5 by 18.
    Rated 4 out of 5 by from Decent option I have used this joint supplement for one our ponies on and off for about 5 years and I am fairly happy with it. She is older now and has advanced arthritis in her hocks/fetlocks and I can tell it is keeping her happy. She does a little jumping and trail riding, so I think this is a great fit. I wouldn't reccomend this for someone who is training of competing heavily - I don't think it gives enough support - but for a younger or for a lightly ridden horse it is a great fix.
    Date published: 2011-05-05
    Rated 5 out of 5 by from Fluid Action I have used fluid action for years on my slightly creaky draft cross. She has some hock issues and this is one of the only products that I could feel a difference in her movement with (subtle, but her canter quality was better). I love the liquid, within a week you could feel the difference and she ate it with no problem, of course she eats doxy like its candy so we're not much help there. Best of all I can afford it!
    Date published: 2011-01-05
    Rated 5 out of 5 by from Great Product for Great Price Dont think you have to spend $100 and $100 of dollars on joint supplements. This product is a great price and it works great too!
    Date published: 2010-06-01
    Rated 5 out of 5 by from Highly Recommend! I gave Fluid Action to my 8yr old lab that has trouble moving due to arthritis and Hip Dysplasia. After only 2 weeks on it she is a whole new dog. Moving more freely now. And running! I've never seen her run as much as she is now! Highly recommend for those with dogs that need a good joint supplement
    Date published: 2010-03-28
    Rated 5 out of 5 by from Used it for years I have a small Hunter jumper barn that is very busy. Between the show horses and the older school horses Fluid Action Joint Powder with or with out HA has been a barn staple for years. It has helped to keep my horses going sound and pain free for years. Great stuff it is everything the say it is.
    Date published: 2010-03-21
    Rated 5 out of 5 by from Can't Live Without it My friend has a 19-year-old rescue mare that she adopted 3 years ago. Since then, she has been rehabbed and is currently in dressage training, and just started showing localy this year. This product makes a world of difference! We originally put her on it because it is so economical, and in the rare occasions when we have forgotten to re-order in time, the mare was stiff and creaky. When she is on it, she acts and moves like a much, much younger horse.Because of the noticeable difference in the horse, and the great price, this mare will never be without this supplement!
    Date published: 2010-01-09
    Rated 4 out of 5 by from well worth the cost Currently used to help a older horse's joints, we see moderate improvement in range of motion with months of use. Very palatable for the horse. Easy to dispense.
    Date published: 2009-11-02
    Rated 5 out of 5 by from Love it I've used this product for years on my (now 32 year old) Morgan. He has problems associated with age, obviously. But the biggest difference is that ever since he's been on Fluid Action, you never hear all the cracking and clicking that his joints used to make, so I KNOW it's doing something!
    Date published: 2009-06-03
    Rated 4 out of 5 by from
    Date published: 2009-04-22
    Rated 5 out of 5 by from Great for my picky eater I've tried many different types of joint supplements for my finicky mare. Even the treats didn't fly with her. With the Fluid Action over her grain, she doesn't even hesitate. And a bonus feature of this fluid is that it doesn't freeze in the winter!
    Date published: 2009-02-10
    Rated 5 out of 5 by from Great for young horses I have a 3 year Arabian reiner and with the amount of riding that was put on to him, the vet recommended a joint supplement. This stuff has been great. My colt is doing great. Thank you.
    Date published: 2006-02-10
    Rated 5 out of 5 by from Fantastic In my barn, every horse is reaching their senior years (13 yrs +). All are still active, and this keeps them all free of stiffness and makes their movements more, well...fluid. I like the liquid more then the powder as even my pickiest horse, who will usually refuse to eat his meals with many other supplements, will happily eat the Fluid Action. I suggest it for every horse, every discipline, every age.
    Date published: 2005-10-29
    Rated 5 out of 5 by from I know my horses' joints are safe with Fluid Action! Finish Line products have been so helpful to my horse. I ride and train my horses in Eventing which is tough on our dear equines. I did a lot of study-up on this product and it is the best one we have tried. My horse feels great and has not been stiff or lame since I started using this product. I am so glad that Fluid Action has been a step ahead of all the rest!
    Date published: 2005-02-16
    • y_2017, m_2, d_19, h_9
    • bvseo_bulk, prod_bvrr, vn_bulk_0.0
    • cp_2, bvpage2n
    • co_hasreviews, tv_3, tr_15
    • loc_en_US, sid_1398, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_smartpak

    Q & A

    Healthy Horses  ❤  Happy Riders