HyaFlex for Cats

(3 customer reviews)


HyaFlex™ for Cats is a liquid high molecular weight HA for oral use. This patented feline formula supports your cat’s healthy joint and cartilage function. It contains no preservatives and is odorless, tasteless and colorless. (30 ml)

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SKU: 858259000032 Category:


HyaFlex™ is Hyaluronic Acid (HA) solution for oral administration. The Hyaluronic Acid in HyaFlex™ is one of the highest in molecular weight. HyaFlex™ oral HA helps to support your cat’s joint, skin, eye and gum health.

Key features

  • Maintains healthy joint mobility and flexibility
  • Maintains healthy joint function
  • Maintains healthy cartilage function



What does HA do for my cat’s joints?
The HA in HyaFlex™ helps to improve joint movement and cushioning. If we compare the joints of your cat’s body to an automobile engine, the joint fluid in their body mimics the oil in a car engine. At regular intervals we replace the oil in our car engines because the heat and friction breakdown the oil’s viscosity. The oil becomes thinner and less able to protect the metal surfaces from excessive wear. HyaFlex™ acts the same way in their joints. As your cat ages, the viscosity of their joint fluid breaks down and becomes thin and is unable to cushion the joint cartilage. This leads to increased friction on the cartilage surfaces of their joints. Taking HyaFlex™ helps maintain the normal viscosity of joint fluid and healthy joint movement.

What if my cat doesn’t have joint issues?
If you are not currently experiencing joint issues, then HyaFlex™ may be used to provide benefits in the long run. Just as we change the oil in our car to help stop problems, taking HyaFlex™ may help your cat by maintaining proper joint fluid viscosity. Also, Hyaluronic Acid production slows down considerably as cats age, which account for the joint issues, so it makes good sense to compensate with HA.

How do I give HyaFlex™ to my cat?
Just administer the specified amount (shown on the side of the box) of HyaFlex™ to your cat once daily. HyaFlex™ is odorless and tasteless so your cat won’t even notice it. Each bottle of HyaFlex™ contains a 30-60 day supply depending on the weight of your cat.

Where does the Hyaluronic Acid in HyaFlex™ come from?
The Hyaluronic Acid in HyaFlex™ comes from an extracellular protein produced by natural fermentation. This product is not derived from any animal source. Hypersensitivity reactions should not be a concern.

Because it is an acid, will it burn my or my cat’s skin or stomach?
Hyaluronic Acid is often called an acid and this is a misnomer. Hyaluronic Acid as a sodium salt (sodium hyaluronate) will have a neutral pH measurement, not an acidic pH measurement. Because of the water retention capacity of Hyaluronic Acid, it is actually a very good moisturizer for the skin and is being used in many facial cream and body lotions.


Normal Saline, Sodium Hyaluronate (Hyaluronic Acid).


Add one (1) ml (full dropper) one time daily or as recommended per body weight.

Storage and warnings:
Store at room temperature. Keep out of reach of children. Do not use if seal is broken. For feline oral use only– not for injection use.

Further directions:
To avoid contamination of product, use caution when removing the dropper from bottle, avoiding contact with any surface or other object other than the inside of the bottle.

3 reviews for HyaFlex for Cats

  1. N. Anthony (verified owner)

    Have I told you how wonderful Hyaflex has been for my elder cat (now 15+ years old)? About 3-4 years ago I noticed she was no longer jumping up on the sofa but would stroke against my ankles for me to pick her up. So I thought well, she’s getting old, and I proceeded to make it easier for her to get up and down on furniture and window sills (steps to climb up and down, pillows to jump down onto, etc.). Then a few days before Thanksgiving 2 years ago, her left hind leg started to give out when she tried to walk and she would just lay down until she was ready to make another effort. Frightened, I took her to the vet and x-rays showed bony growth on the hip vertebrae (picture a dog bone-shaped cookie cutter with the rounded bumps on either end becoming pointed). The vet said this was similar to bone spurs and most likely due to old trauma, and that there was nothing to do for her, not even surgery. Most likely she had hurt herself by falling, and she was slowly improving. A friend recommended Glucosamine & Chondroitin. I checked the small pet section at a local health food store and found they did not carry G & C for cats but they did have Hyaflex. I had read about hyaluronic acid and how research was showing it appeared to have the ability to rebuild cartilage between joints. So I bought the Hyaflex and within a month I could tell Lucy was feeling better. She has improved steadily ever since, and over time has resumed adding the occasional fast trot to her sedate pace. In this past month (after being given Hyaflex for 1 year 8 months), she is making higher jumps than I have seen her do in years (high enough to jump on the sofa if the seat cushion were removed) and one morning she even ran down the hall for a short distance. I keep telling myself I have got to start taking hyaluronic acid supplements!

  2. Fran Olsen Sharp (verified owner)

    So far … stuff is pretty good. Our cat is almost 18 years of age. We thought she was just getting old and being lazy and urinating next to the litterbox. We also though, well, maybe she just could not get in anymore. I finally got to watch her. It wasn’t that she wasn’t getting in or that she wasn’t trying. She could not squat, and the urine was coming over the top of the litter box. She is not able to squat … YAY … and urinate in the litter box. Additionally, she hasn’t been able to or wanted to even try to jump up to the bathroom sink in well over a year. The other day, I could not find her, and to my surprise, she was sitting ON TOP OF THE COUNTERTOP in the bathroom … waiting on the water facet to be turned on. So, I think we are on a roll with the Hyaflex for our old old queen!!!

    THANK YOU!!!

  3. Nancy A. Ono (verified owner)

    My Tonkinese will be 19 years old in September. When she was younger, she was always active. She would run up and down the hall with her sister, jump up to the top of her cat trees, and climb the ramp that would take her to the kitty walkway I had mounted high up on my wall. She would run across the walkway and come down on the other end. She also had the habit of jumping into my arms. All I had to do was tap my chest and up she would jump. It has now been years since she has attempted these feats. She has arthritis and limps around the house now. She can no longer jump up on my bed so I have steps at the foot of the bed so she can join me at night. I have been giving her HyaFlex for Cats for 7 weeks now and I am so very pleased with the improvement I see. Her limping is not totally gone yet but it has definitely improved … and with continued use of HyaFlex for Cats, I hope it will be completely gone. She is more energetic and active. She’s up and walking more now. I look forward to the day she once again runs down the hallway chasing her sister or jumps up on my bed without having to use the steps. Thank you Hyalogic!

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