Frank and Jellys

Prodog Flexx Mobility and Flexibility Joint Supplement

Advanced high-specification dietary supplement formulated by experts

To aid and assist joint and bone protection and cartilage repair in dogs. This unique, dual-purpose product, also targets skin health and coat condition with proven results. The all-natural, organic, premium-grade ingredients will support joint structure maintenance & function, promoting mobility and flexibility by fighting inflammation, preventing pain and easing stiffness.

It is a natural supplement which can be added to to your dog’s food once daily and is suitable for dogs receiving a dry, wet or raw diet.

  •  Aids joint mobility and flexibility
  •  Prevent and ease stiff joints
  •  Supports freedom of movement regardless of age
  •  Powerful natural anti-inflammatory properties
  •  Boosts Methyl-Sulfonyl-Methane levels in joints
  •  Includes high levels of Glucosamine Sulphate and Chondroitin
  •  Rich in fatty acids, Omega 3, 6 and 9
  •  Boosts the immune system
  •  Promotes a healthy coat and skin condition
  •  Suitable for puppies from 24 weeks


Available on backorder

Purchase this product now and earn 33 Points!

Useful Info

Flexx acts as a joint protector and coat conditioner for dogs of all ages regardless of size or breed. The powerful, all natural and organic ingredients enable the maintenance of joint structure and function, promoting mobility and flexibility by helping to prevent and ease stiff joints caused by arthritis in dogs. Flexx combines excellent anti-inflammatory properties with bone structure protection and cartilage preservation. In addition to this, Flexx is also the ideal dog supplement for promoting a glossy coat and optimum healthy skin.

The ingredients in Flexx include Fish Collagen & Oil, rich in fatty acids Omega 3 & 6. Both essential for a dogs health and to achieve optimum skin health and coat condition.

Flexx is rich in Chlorella Growth Factor which is enhanced with nucleic acid. This can boost a dog’s immune system which naturally declines with age. A low immune system can lead to degenerative issues such as arthritis in dogs.

There are two primary ingredients in Flexx which have strong anti-inflammatory properties. These are Vitamin C and Turmeric. Both have numerous benefits for dogs of all age and size including effectively reducing joint pain, swelling and soft cartilage damage.

30 Day Money Back Guarantee

We offer a 30 day money back guarantee. So with ProDog nutritional supplements you have absolutely nothing to lose.

Using ProDog nutritional supplements, the results will speak for themselves within a very short space of time. We are so confident about this if you’re not satisfied we’ll give you a full refund on your purchase with absolutely no quibble. Click here for the terms and conditions.

Directions of use: Add to food depending on weight

Up to 20kg:  1 serving per day

Over 20kg:   1.5 servings per day

Over 40kg:   2 servings per day.

For puppies under the age of 24 weeks, pregnant dogs or dogs on medication, please seek veterinary advice before use. For dog use only. Keep out of reach of children and other animals. In case of accidental overdose contact your local vet immediately.

Size: 200g

Ingredients:  MSM (Methyl-Sulfonyl-Methane), Fish Collagen & Oil, Hemp Protein, Turmeric, Chlorella, Chondroitin, Glucosamine Sulphate, Vitamin C

Always consult with your vet if your dog is pregnant, nursing or on long term medication before giving additional supplements.

Customer Reviews
4.6 Based on 21 Reviews
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I recommend this product
Perfect supplement!

I bought this for my dog Darcie as she trains in agility and I wanted to support her joints as she is so active. I also thought it would be good to support her after such a long break from training due to Covid. Well I haven't been disappointed! She is loving being back at training and I love knowing that her joints are supported while she does what she loves. Thanks so much!

Nicola W.
I recommend this product
Prodog Flexx mobility

Using for 2 cavachons, adding with water to evening meal. One took a little getting used to the taste, hes a fussy eater, after a couple of days no problems. Using to boost mobility as they age though one has unfortunately had recent cruciate surgery and this product seems to be assisting her recovery massively.

Frank and Jellys Prodog Flexx Mobility and Flexibility Joint Supplement Review

Suitable For:

Additional information




Prodog Raw

Breed Size

Small Breeds, Medium Breeds, Large Breeds, Extra Large Breeds


Mobility, Joints



All orders placed before 12:00 Monday – Friday (exc Bank Holidays) will aim to be dispatched the same day.

During busy periods such as sale periods the dispatch time may be slightly delayed.

For UK Mainland Orders 0-2kg we use Royal Mail as our delivery partner.

Delivery Options Available

RM 48 Hour – £5.99
RM24 Hour – £8.99

Orders over £75 will receive RM 48 hour free-shipping. Due to Covid -19 we are not currently offering a non-tracked service.

All international orders are priced on weight and will be quoted at the checkout.

Royal Mail delivery time scales are guidelines and reasonable endeavors. During peak periods these may experience delays however Royal Mail will not refund shipping costs due to delayed deliveries.

Please note that Nikki’s Nesties products are handmade to order and can take up to 14 days to arrive from point of order and will be sent separately from all other items as part of the same order.

Orders which including items labeled on its description as “temporarily out of stock” or on backorder will be dispatched once all items are back in stock.

Any questions on out of stock items please email customerservices@frankandjellys.com

Please note: Strict EU guidelines, governed in the UK by the Veterinary Medicines Directorate, restrict the use of words and information that may portray a product as a registered medicine. In order to comply with these regulations, a number of our customer reviews have had certain words removed.