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Your benefits

Focus on purity

Free from genetic engineering and unwanted additives.

Easy to use

Capsule, powder or granules, simply mixed into the food.

Well tolerated

Selected ingredients in a natural composition.

Valuable micronutrients

Tailored to the nutritional needs of dogs.

This product is:

DOG FIT by PreThis® JOINTS greenshell

Pure Green-Lipped Mussel + Collagen for joint care.

The original from impeccable New Zealand farming.

Dog Green-Lipped Mussel

DOG FIT DogDOG FIT by PreThis® JOINTS greenshell is a natural joint support. It combines high-quality Green-Lipped Mussel (from impeccable farming) with essential collagen as well as important B vitamins (B6, B9, B12) and Vitamin E. These micronutrients sensibly supplement the daily diet and contribute to supporting the normal function of joints, cartilage structures, and nerves. Furthermore, the complex can support the physiological production of synovial fluid (joint fluid), an important contribution to the natural lubrication of joint surfaces. We developed JOINTS greenshell together with our veterinarian Dr. Sibylle Ott.

DOG FIT DogThe natural Glycosaminoglycans (GAGs) from the green-lipped mussel are considered a building block of synovial fluid, which is required for the low-friction interaction of joint surfaces. The combination is particularly suitable as a complementary feed for dogs with an increased need for joint-supporting nutrients, such as with breed-specific challenges (like in German Shepherds, Labradors, or French Bulldogs) or in life stages with increased demands on the musculoskeletal system, such as growth, old age, or intense physical activity of the dog. You can find more about the green-lipped mussel on our ingredient page.

With DOG FIT by PreThis® JOINTS greenshell we offer four-legged friends an extremely high-quality and purely natural support for normal joint function and an active dog life.

Dog Green-Lipped Mussel

Tip: JOINTS greenshell is also available in a combo set with JOINTS, cheaper than the two individual products at the regular price.

Trusted Shops

Great quality, uncomplicated communication. Since my first order I have been totally delighted with the products and have also recommended them to my friends.

Shop review via Trusted Shops

Customer

27.05.2026

Dog


The most important benefits at a glance:

  • Combines Green-Lipped Mussel (GAGs) & Collagen as building blocks for cartilage and joint fluid
  • Supports the physiological production of joint fluid
  • With Vitamin E, which contributes to protecting cells from oxidative stress
  • With B vitamins (B6, B9, B12) to support the nervous system and energy metabolism
  • Also suitable for sensitive and young dogs

Possible Applications:

  • For growing dogs of larger breeds with increased needs.
  • For breed-specific challenges to the musculoskeletal system.
  • As a component of holistic care for the dog's joint system.

Complementary Recommendations:

  • For special demands such as on the kneecap, hip, or spine, we recommend a combination with:
    • JOINTS: for extended supplementation with devil's claw, frankincense, collagen, and MSM
    • VITAL regeneration: for supporting elastic structures such as tendons, ligaments, and vertebral connections

The other ingredients and their functions:

  • Collagen
    • Is an essential building block and the most important structural protein for cartilage, tendons, and ligaments.
    • More on our ingredient page.
  • B Vitamins (B6, B9, B12)
    • Contribute to a healthy nervous system and joint metabolism.
    • More on our ingredient page.
  • Vitamin E
    • As an antioxidant, it contributes to protecting cells from oxidative stress.
    • More on our ingredient page.

Individual support for your dog!

Your dog is unique and has individual needs. Should you have questions about specific aspects related to the product, please do not hesitate to contact us directly. The best way is via email to service@dog-fit.com, where you briefly describe the exact circumstances. We are happy to assist you with our expertise and help you find the best possible support for your dog.

Our Promise

Free from additivesDOG FIT by PreThis® is non-GMO. Our products are free from gluten, fructose, yeast, soy, artificial flavors, flavor enhancers, and preservatives.

DOG FIT by PreThis® meets even the strictest requirements and we do our best every day to ensure the quality of our products.

Customer reviews of "DOG FIT by PreThis® JOINTS greenshell"

How does your dog like it?

Share your experiences with other customers.

(17 comments)

Review Form

Customer reviews

We publish a selection of the reviews. They are checked before publication. Passages that refer to illnesses or symptoms are shortened by us and marked with […].

Romina

16 June 2026

Thumbs up

Two thumbs up for Greenshell! It's great for our dog.

— Automatic translation via DeepL

Jenny

8 November 2025

Extremely satisfied

It's definitely good for him. I especially recommend the combination of green-lipped mussel and collagen.

— Automatic translation via DeepL

Maria H.

19 October 2023

Joints

My dog has been on it for a long time, and I think it's really helping him.

— Automatic translation via DeepL

Oliver S.

22 December 2021

Good quality

I searched for a long time and finally found it :-) The dosage is just right—you don't usually find that. So the price is totally fair; with other brands, you just get some weak powder for that price. Awesome!

— Automatic translation via DeepL

Eva-Maria T.

18 June 2021

A good addition to their diet

Dear Team, Our dog (15) has been getting this added to his food as a preventive measure for 4 years now—so it’s about time I wrote a review :-) He tolerates it very well and is still fit and healthy today. I feel like Greenshell and Immun are making a big difference. I’ve sought advice from Arne and Sandra several times over the years and have been very satisfied every time. You guys are great—keep up the good work!

— Automatic translation via DeepL

Götz B.

12 February 2021

Patellar dislocation

My vet had immediately recommended surgery for the patellar luxation, but that was out of the question for me. So I looked for alternatives and eventually came across DOG FIT. The consultation was truly professional and helpful. The recommendation to feed green-lipped mussels along with JOINTS was just right for us. My impression is that our dog is doing much better as a result—without any pain medication or surgery. I now order it regularly.

— Automatic translation via DeepL

P. D.

11 September 2020

A great combination!

Our old dog has really bad arthritis. We started him on Joints with glucosamine. Sandra from the store then suggested that I combine it with Joints Green-Lipped Mussel. Thank you, wonderful Dog Fit team.

— Automatic translation via DeepL

Gerrit K.

15 February 2018

Truly excellent. Our pug is really lively and full of energy.

Truly excellent. Our pug is really lively and full of energy.

— Automatic translation via DeepL

Angelika S.

13 January 2017

As always: fast delivery. We're very happy with the product for our elderly dog.

As always: fast delivery. We're very happy with the product for our elderly dog.

— Automatic translation via DeepL

Claudia S.

9 January 2017

It's the best product I know. My 12-year-old German Shepherd is doing really well again.

Nothing else has worked so far. Injections only helped for a short time. The consultation was a one-time thing; I was offered a gift certificate, and I’m thrilled. It doesn’t get much faster, more reliable, or friendlier than this. Your loyal Claudi

— Automatic translation via DeepL

Dosage instructions

  • Up to 2 kg, one small capsule every 2 days
  • 2 to 10 kg one small capsule daily
  • 10 to 25 kg one medium capsule daily
  • 25 to 50 kg one large capsule daily
  • Over 50 kg two large capsules daily

If necessary, the capsules can be opened and the contents mixed into the food. The capsule shell consists of bovine collagen (gelatine), a natural structural protein. After removing the contents, it is recommended to soften the capsule in a little water and add it as well.

Please store in a dry, cool place (6-25 °C), protected from light and out of the reach of small children.

Ingredients

Complementary feed for dogs

Our proven formula is available in three sizes to ensure exact dosage for every weight class. The ingredients are listed per capsule.

DOG FIT by PreThis® JOINTS greenshell small

Contents small per capsule
Green-lipped mussel powder 60 mg
Acacia fiber
(natural, prebiotic filler)
Collagen (capsule shell bovine gelatin) approx. 47 mg
Vitamin E (D-alpha tocopheryl acetate) 1.1 mg
Vitamin B6 (pyridoxine hydrochloride) 164 µg
Folic acid (vitamin B9) 28 µg
Vitamin B12 (methylcobalamin) 325 µg


Analytical constituents (approx.):
Crude fiber 60.0 %, Crude protein 21.0 %, Crude ash 2.5 %, Crude fat 0.2 %

Per pack 60 capsules = 12.6 g

DOG FIT by PreThis® JOINTS greenshell medium

Contents medium per capsule
Green-lipped mussel powder 300 mg
Collagen (capsule shell bovine gelatin) approx. 77 mg
Vitamin E (D-alpha tocopheryl acetate) 5.4 mg
Vitamin B6 (pyridoxine hydrochloride) 820 µg
Folic acid (vitamin B9) 140 µg
Vitamin B12 (methylcobalamin) 1,625 µg


Analytical constituents:
Crude protein 53.0 %, Crude ash 4.9 %, Crude fiber 0.6 %, Crude fat 0.3 %

Per pack 60 capsules = 23.4 g

DOG FIT by PreThis® JOINTS greenshell large

Contents large per capsule
Green-lipped mussel powder 600 mg
Collagen (capsule shell bovine gelatin) approx. 120 mg
Vitamin E (D-alpha tocopheryl acetate) 10.8 mg
Vitamin B6 (pyridoxine hydrochloride) 1.64 mg
Folic acid (vitamin B9) 280 µg
Vitamin B12 (methylcobalamin) 3,250 µg


Analytical constituents:
Crude protein 53.0 %, Crude ash 4.9 %, Crude fiber 0.6 %, Crude fat 0.3 %

Per pack 60 capsules = 44.8 g

Quality guarantee: JOINTS greenshell is non-GMO and free from gluten, fructose, lactose, soy, yeast, grains, sugar, palm oil, and artificial preservatives. The raw materials for our JOINTS greenshell come exclusively from impeccable New Zealand farming.

Please store in a dry, cool place (6-25 °C), protected from light and out of the reach of small children.

Note: When selecting our ingredients, we decide carefully and rely on tested raw materials of high quality. Our responsibility towards animals comes first.

It is a clear priority for us to ensure that none of our ingredients originate from protected animal species. This commitment reflects our deep-rooted respect for the animal world.

To benefit from the 5+1 Offer

Questions

Which dogs is JOINTS greenshell intended for?

For dogs from 8 months of age, of any size and breed. We especially have in mind dogs whose musculoskeletal system is under greater everyday load, and for owners who also want to rely on green-lipped mussel. JOINTS greenshell is a complementary feed for daily feeding and no substitute for a balanced diet. If your bitch is pregnant or nursing, or your dog is currently under veterinary treatment, please discuss supplementary feeding with your veterinary practice first. You will find the right size for your dog's weight under “Dosage instructions”.

Is JOINTS greenshell well tolerated, are there any side effects?

JOINTS greenshell is generally very well tolerated. We select our ingredients for high quality and a natural composition. As with any natural product, an individual dog may still react sensitively to a single ingredient. If you notice signs of intolerance, pause the supplement and get in touch with us. We are happy to help. If your dog has pre-existing conditions or receives a special diet or medication, please also talk to your veterinary practice.

When can I expect to see first results?

Give JOINTS greenshell regularly for at least six weeks, in some cases longer. How quickly you notice something varies from dog to dog and depends on your dog's individual needs. Natural formulations need time to unfold their supporting properties: regular feeding matters more than a high single dose.

How long does one pack of JOINTS greenshell last?

One pack contains 60 capsules and therefore lasts around two months with daily feeding. If your dog receives an extra capsule according to the dosage recommendation, it will last correspondingly less. For continuous feeding we offer value packs.

How do I dose JOINTS greenshell?

The amount depends on your dog's weight: up to 2 kg one small capsule every 2 days, 2 to 10 kg one small capsule daily, 10 to 25 kg one medium capsule daily, 25 to 50 kg one large capsule daily and over 50 kg two large capsules daily. If necessary, you can open the capsule and mix the contents into the food.

My dog won't eat the capsule: what can I do?

That can almost always be solved. Many dogs accept the capsule more readily when it is embedded in something soft: a spoonful of wet food, quark or a piece of liver sausage usually does the trick. If your dog doesn't like the capsule at all, you can also open it and mix the contents into the food. One note on this: with JOINTS greenshell the capsule shell is made of high-quality beef gelatine and is therefore a valuable component in itself. So don't throw it away after opening. Soften it briefly in a little water and add it to the food. What matters most is regularity: an occasionally missed dose is no problem, but feeding should not be interrupted for long.

What makes JOINTS greenshell special?
DOG FIT by PreThis® JOINTS greenshell stands for premium quality green-lipped mussels from impeccable farming in New Zealand. This special preparation is aimed at supporting the synthesis of synovial fluid and helps support stressed joints. The high-quality ingredients of the green-lipped mussel enable a natural and effective promotion of joint health in dogs. JOINTS greenshell is the ideal choice for dog owners who value natural solutions to maintain the mobility and vitality of their four-legged friend.
Can I also give JOINTS greenshell preventively?
Yes, a precautionary use of DOG FIT by PreThis® JOINTS greenshell makes a lot of sense. By integrating it into a dog's diet at an early stage, this supplement can help maintain long-term joint health and functionality. JOINTS greenshell offers valuable support, especially for dogs whose joints are under particular strain due to their breed, age or lifestyle.

The natural ingredients contained in the green-lipped mussel can promote the production of synovial fluid and thus support the joints in the long term. Regular supplementary feeding can help maintain dogs' mobility and joy of life.

For further questions, such as combining several supplements, medication or the 5 + 1 deal, see our general FAQ.

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Heart and paw

Veterinary expertise at the heart of our team

Dr. med. vet. Sibylle Ott plays a central role in our team at DOG FIT by PreThis®. As an experienced veterinarian, she makes a decisive contribution to the development of our products. Her expertise and deep understanding of dogs' needs informs many of the formulas we create. She is a valuable asset to our team and to your dog's health.

Dr. med. vet. Sibylle Ott
Trusted Shops

Great quality, uncomplicated communication. Since my first order I have been totally delighted with the products and have also recommended them to my friends.

Shop review via Trusted Shops

Customer

27.05.2026

Dog
Trusted Shops
Trusted Shops

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