4Endurance Pro Flex - 400 g peach flavor, black container with grey label, orange stripe, joint support benefits listed.
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–25 %
Pro Flex
Pro Flex
Pro Flex
Pro Flex
Pro Flex
Pro Flex
Pro Flex
Pro Flex
4Endurance Pro Flex - 400 g Tropical flavor joint support formula, black container with pink strip on white background.
Top offer
–25 %
4Endurance Pro Flex - 400 g peach flavor, black container with grey label, orange stripe, joint support benefits listed.
Pro Flex
Pro Flex
Pro Flex
Pro Flex
Pro Flex
Pro Flex
Pro Flex
Pro Flex
4Endurance Pro Flex - 400 g Tropical flavor joint support formula, black container with pink strip on white background.

Don't know which gel to choose? 👇

Energy Gel Variety Pack
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Pro Flex

473 reviews
Complete joint support
4Endurance Pro

Premium joint support formula, combining hydrolyzed collagen with other top-quality ingredients to reduce discomfort and keep your joints in top condition.

✔ Reduces joint discomfort
✔ Aids in cartilage protection and repair
✔ Enhances flexibility and mobility
✔ Helps protect joints from wear and tear
✔ Improves joint hydration

€39.99 €29.99Save €10.00
Quantity: 400 g / 20 servings

Dispatch within 48 hours. Delivery time depends on your location.

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Pro Flex

€39.99 €29.99

Don't know which gel to choose? 👇

Energy Gel Variety Pack

Energy Gel Variety Pack
5 types of energy gels
€24.99 €14.99
Add to cart

Pro Flex is a complete joint support supplement designed for endurance athletes who want to boost the strength and flexibility of joints and ligaments. Helping you stay active and perform at your best without discomfort.

Formulated with a powerful blend of hydrolyzed collagen, MSM, boswellia, glucosamine and chondroitin, Pro Flex works synergistically to support joint strength, reduce discomfort, and improve mobility.

It is also packed with vitamin C, vitamin B6, and vitamin D to further maximize the effectiveness of its high-quality ingredients and keep your joints in top condition.

Boost the strength and flexibility of your joints with Pro Flex, and train without joint discomfort!

  • Reduces joint discomfort
  • Aids in cartilage protection and repair
  • Enhances flexibility and mobility
  • Helps protect joints from wear and tear
  • Improves joint hydration
  • Increases joint health and strength
  • Boosts the immune system
  • Boosts collagen production

Mix 3 scoops (20 g) with 250-400 ml of water.

The product is best taken between the two main meals during the day.

Tip: The product does not contain artificial substances, such as guar gum or xanthan gum, so mixing with water is a little more difficult. We recommend using a shaker or blender. It is best if the water is at room temperature.

Attention: Do not take if allergic to mussels, crabs, and other crustaceans!

The product is not a cure and is not intended for the treatment of serious issues, such as degenerative tissue, injuries, and conditions such as osteoarthritis, among others. If you have a more serious injury, please consult your doctor.

 

1 serving (20 g)

%RDA

Hydrolyzed collagen

 9000 mg *

Glucosamine sulphate

 1500 mg *

Chondroitin sulphate

 1200 mg *

Methylsuflonylmethane (MSM)

 300 mg *

Boswellia

 200 mg *

Vitamin C

 100 mg 125

Vitamin B6

 5 mg 357

Vitamin D

 7.5 mcg 150

Hyaluronic acid

 20 mg *

*Daily value not established.

Food supplement. Ingredients: hydrolyzed collagen, maltodextrin, acidity regulators: citric acid, malic acid, glucosamine sulphate KCI (from CRUSTACEANS), chondroitin sulphate, methylsulfonylmethane (MSM), extract from the resin of Indian frankincense (Boswellia serrata), L-ascorbic acid (vitamin C), flavorings, color: carotenes, sodium hyaluronate, pyridoxine hydrochloride (vitamin B6), cholecalciferol (vitamin D), sweetener: sucralose. May contain traces of CEREALS, GLUTEN, SOYBEANS, MILK. The product is not suitable for people who are allergic to shellfish, crabs or crustaceans. Netto: 400g

Who Should Use Pro Flex?

Top solution for athletes experiencing joint discomfort during or after training, reduced flexibility, joint clicking, or stiffness.

If you experience joint discomfort, or if you want to take proactive steps to prevent it from holding you back, Pro Flex helps you protect your joints and stay in motion.

Take care of your joints, train more, and hurt less with Pro Flex.

How Does Pro Flex Work?

Pro Flex combines a superdose of hydrolyzed collagen with key joint-supporting ingredients to:

  • Reduce joint discomfort and friction
  • Boost joint hydration and flexibility
  • Protect your cartilage from wear and tear


By minimizing friction and supporting long-term joint health, Pro Flex helps your joints stay flexible and resilient.

You’ll feel the first benefits after 3 weeks of consistent use with improved comfort and mobility. Continued use strengthens these effects, helping you stay active through demanding training blocks.

Hydrolyzed collagen

Collagen is a protein naturally produced in the body, responsible for the health of joints, bones, ligaments, and skin. Since its natural production decreases with age, supplementing collagen always makes sense. Hydrolyzed collagen in combination with vitamin C provides the best absorption and effect. Pro Flex contains top-quality bovine collagen type I and III.






Methylsuflonylmethane (MSM)

MSM or organic sulfur boosts your immune system, boosts collagen and glucosamine production, and increases the health of skin, hair, and nails. It also has an anti-inflammatory and anti-oxidant effect.


Boswellia

Boswellia is a powerful natural adaptogen that boosts joint health and flexibility. It also reduces joint pain and inflammation. As an adaptogen, boswellia works best after a loading phase of 6 to 8 weeks.


Hyaluronic acid

Hyaluronic acid keeps joints hydrated and cushioned, sustaining mobility and reducing stiffness.

Glucosamine sulphate

Glucosamine is a natural compound that protects joints and ligaments from exercise-induced wear and tear. It also alleviates joint pain and boosts the production of new tissues.




Chondroitin Sulphate

Chondroitin is a molecule that preserves the health of cartilage, protects it from degradation, and boosts the production of new cartilage.

Vitamin C

Essential for collagen synthesis and joint tissue repair. Strengthens connective tissues and enhances the effectiveness of collagen supplementation.

Vitamin B6

Supports protein metabolism and reduces fatigue, ensuring efficient collagen utilization.

Vitamin D

Contributes to bone strength, calcium absorption, and proper muscle function, helping protect joints.

Recommended Use

Mix 3 scoops (20 g) with 250-400 ml of water.

The product is best taken between the two main meals during the day.

Tip: The product does not contain artificial substances, such as guar gum or xanthan gum, so mixing with water is a little more difficult. We recommend using a shaker or blender. It is best if the water is at room temperature.

Attention: Do not take if allergic to mussels, crabs, and other crustaceans!

The product is not a cure and is not intended for the treatment of serious issues, such as degenerative tissue, injuries, and conditions such as osteoarthritis, among others. If you have a more serious injury, please consult your doctor.

Customer Reviews

Based on 473 reviews
68%
(323)
15%
(69)
9%
(44)
3%
(15)
5%
(22)
P
Piergiorgio C. (Porto Mantovano, IT)

Pro Flex

V
Vanessa S. (Milan, IT)

Pro Flex

G
Giorgetti/scotti (Milan, IT)

Pro Flex

123

Reviews in Other Languages

S
Schwarz A. (Judenburg, AT)
Achillessehnenflex

Hallo, dank dem Pro Flex bin ich an meiner Achillessehne, die mir ein halbes Jahr Probleme bereitet hat wieder fast Schmerzfrei, jetzt kann ich wieder Radfahren und auf die Berge gehen, was vorher fast unmöglich war.

D
Damiana L. (Florence, IT)

Direi per adesso gran bel prodotto!! Solo 15 giorni di utilizzo e sento la schiena migliorata...💪🏻

Grazie per la tua recensione positiva! Siamo felici di sapere che il nostro Pro Flex ti stia aiutando a migliorare la schiena in così poco tempo. Continua ad utilizzarlo con costanza e vedrai ancora più benefici. Grazie ancora per aver scelto il nostro prodotto. 💪

A
Antonio C. (Naples, IT)
Antonio dalla puglia , la mia esperienza con proflex

Uso proflex da circa due anni, tutti i giorni con una dose di 2 misurini durante i miei allenamenti giornalieri cioè corsa, avevo problemi di articolazioni tendini polpaccio soprattutto Ginocchia ma da quando uso questo integratore la mia vita ricambiato.eccellente Prodotto lo consiglio a tutti

Siamo davvero felici che il nostro prodotto ti sia d'aiuto!

123

At 4Endurance, our mission is simple

To provide elite-level nutrition at accessible prices for all. We follow the latest science in sports nutrition and use only high-quality ingredients that support your performance. From amateur enthusiasts to professional teams, we support athletes of all levels in reaching their goals.

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