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TendiFlex has been specially developed for tendons, ligaments, joint function and promotes healthy cartilage.
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TendiFlex has been specially developed for tendons, ligaments, joint function and the production of new connective tissue. TendiFlex promotes healthy tendons, ligaments and cartilage.

TendiFlex can be used for both acute and preventive treatment and is doping free!

This product is recommended by

  • Tendon injuries
  • Joint complaints
  • Heavy strain on tendons, ligaments and ligaments
  • Horses with wear and tear and cartilage breakdown
  • Strain of ligaments and tendons

TendiFlex promotes the quality of new connective tissue and strength and elasticity of tendons and ligaments. This product is very suitable to feed to prevent injuries for horses that require top performance.


  • Supports joint lubrication and promotes healthy joint fluid (synovial fluid)
  • Supports strong and elastic tendons and ligaments
  • Provides support for swelling and inflammation
  • Supports the maintenance of healthy cartilage

The best available raw materials

TendiFlex is a very powerful formula of premium collagen peptides (type I & II), the best absorbable natural MSM, turmeric, lithothamne, green-lipped mussel and vitamin C

The repair of tendons and ligaments is a complex and lengthy process. It takes a lot of time to repair the surrounding tissues. Duval TendiFlex supplies additional building blocks in the form of readily available collagen.

Read more about how the ingredients work here

This product comes in a highly concentrated powder. It is recommended to mix this with a slop or make it wet when feeding. To neutralize the odor, some star anise powder has been added, which makes it smell a bit sweeter and has a softer effect on the stomach. TendiFlex contains no added sugar or other fragrances/colours/flavours.

* The collagen peptides we use come from sustainably caught European whitefish manufactured in France. The structure of collagen from fish is closest to the biological form of the horse. The best collagen to use is therefore fish collagen, as it is absorbed the fastest into the body. The MSM has been added in its best recordable form. The vitamin c used is the PurewayC and is absorbed 233x better than the regular vitamin c!


Is your horse more advanced in age? And if you want to support your horse for bones, joints and tendons, check out Duval Multibone +. Or do you have a growing young horse? Duval Multibone + is the product for complete support of the musculoskeletal system

Additional information

Additional information


TendiFlex pure: Premium fish collagen, turmeric, MSM (methylsulfonylmethane), lithothamnium, green-lipped mussel, vitamin C, anise.
* Rich in the mineral Silicon
Additive per kg: vitamin C (l-ascorbic acid) 40 grams
TendiFlex chunk form: Premium fish collagen, egg products, lithothamnium, turmeric, MSM (methylsulfonylmethane), vegetable fat, honey, green-lipped mussel, vitamin C, chia seeds
Additive per kg: vitamin C (l-ascorbic acid) 30 grams


1,5 kilos pure, 2.7 kilos chunk form, 3 kilos pure, 6 kilos pure, 6 kilos chunk form, Trial packaging (powder)


Maintenance and prevention: 6 grams per 100 kilos of body weight.
Dosage for complaints: 10 to 12 grams per 100 kilos of body weight.

Chunk shape:
High/in case of complaints: 20 grams per 100 kilos of body weight.
Maintenance/prevention: 12 grams per 100 kilos of body weight.

Use at least 3 weeks.

Reviews (7)

7 reviews for TendiFlex

  1. Amey -

    Great product! The swelling on the bullet was significantly less with the use of tendiflex!

  2. Cynthia -

    super fine product. my mare, who repeatedly had a recurring tendon injury, is now doing very well with this product. I will therefore continue to give it now.

  3. Miranda -

    My horse has severe osteoarthritis on 2 legs and has now developed tendiflex for 4 weeks. He now runs clean and we can carefully pick up driving again.

  4. Sabine Boat -

    Our horse had a nasty tendon injury on the left front of the superficial tendon. He would have to rehabilitate for at least 6-12 months. For 4 weeks we treated it intensively with the laser, walked every day, put him in a small paddock for a few hours and gave TendiFlex. After 3 months the tendon was completely healed. Now we still carry it together with Multimix and are slowly building it up again. This supplement definitely helped!!!!!

  5. Renata Jans -

    Great product! Horse likes it and certainly have the idea/feeling that it is of added value. The tendon injury has healed very well and we are now building it up, I still give her the maintenance dose of 35 grams.
    My only regret is that it is so very expensive.

  6. C kimenai -

    We feed Tendiflex preventively to our reining horses, a lot is demanded from tendons and ligaments in this sport and good management also means a top supplement. we are very satisfied!

  7. Nancy Schroot -

    After my young stallion had a serious fall and unfortunately suffered an injury, I started giving a treatment of tendiflex on the advice of my vet and it soon went much better! Now I maintain it with the multibone

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