The world's most advanced daily joint health supplement. For comfortable movement and full-body flexibility.

  • Natural botanical support for tendons, ligaments, and cartilage.
  • Nourish and protect aching joints against long-range damage.
  • Formulated by specialists using premium research-backed ingredients.
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  • 4.5
Rated Excellent based on 50 reviews

Join the movement. #UpgradeYourself

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Healthy Joints for Peak Physical Performance.

Performance Lab® Flex is made using premium research-backed ingredients. Produced to the highest quality clean label standards. To deliver health, wellbeing, and performance benefits like no other joint health supplement.

“A game changer for me...”

“Performance Lab® Flex is an excellent joint relief and recovery supplement.

I have been consistently struggling with joint pain and they have provided me with substantial relief and noticeably less inflammation.”

– Chloe Deutscher, Chemical Engineer
image Chloe Deutscher, Chemical Engineer

Peak flexibility performance for all.

Unlike many typical joint supplements, Flex is an all-natural flexibility formula that tackles all lifestyle concerns:
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Strength training

Lifting can tweak shoulders and backs. Limiting gym time and muscle gains.
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Endurance sport

Long-distance running and athletics impact knees, hips and ankles.
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Tech usage

Texting, tapping and typing can strain connective tissues in fingers and wrists.
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In the workplace

From desk jobs to manual labor, repetitive motions may strain joints.
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For older adults

Age-related joint and mobility issues can significantly impair quality of life.
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Let's talk about Flex.

Performance Lab® Flex's ultraclean stack of soothing botanicals and nourishing building blocks will help you excel today, bounce back tomorrow, and maintain healthy flexibility over time.

  • heart icon Comfort Soothes away joint aches and stiffness
  • immune icon Protection Protects against damaging enzymes and free radicals
  • water droplet icon Lubrication Supports synovial fluid for optimal joint flexibility
  • bone icon Bone Strength Supports mineral density for joint end integrity
  • energy icon Shock Absorption Helps hydrate cartilage, keeping it thick, springy and healthy
  • lotus flower icon Resilience Nourishes for limber function and healthy repair

Easy as 2-4 daily capsules.

For best results take 2 capsules in the morning.

You can take a further 2 later in the day, if you need to. Or to support recovery, following exercise.

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Ingredients & benefits.

Flex is a soothing botanical stack of advanced form nutrients. A clean, 100% plant-based formula that is easy on the stomach. And free from any dubious animal content, unlike many joint supplements.

AprèsFlex® Boswellia Serrata

The Boswellia Serrata tree produces chemicals with anti-inflammatory qualities. Commonly used to ease pain and reduce stiffness and swelling in joints.
Flexibility Anti-inflammatory Pain relief
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CurcuWIN® Turmeric

This advanced form turmeric (Curcuma longa) root extract is concentrated for superior absorption. Optimize the soothing, joint nourishing properties.
Soothing Strength Recovery
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Glucosamine Sulfate 2KCI (from corn)

An amino sugar found naturally in the tissues that surround, cushion and support the joints - including cartilage, ligaments, tendons and synovial fluids.
Comfort Lubrication Flexibility
Image of Glucosamine Sulfate 2KCI (from corn)


A complex of large molecules that weave through the extracellular matrix of cartilage. Supporting shock absorption, growth, repair and collagen production.
Shock absorption Growth Repair
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OptiMSM® Methylsulfonylmethane

MSM is a key structural nutrient needed to form and maintain collagen, glucosamine, chondroitin and other proteins that make up connective tissues.
Protection Structural Regeneration
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Clean label.

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Pure and potent

Each capsule is packed with premium research-backed ingredients. No fillers or pointless additives. Just 100% Performance Nutrition.
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All dosages shown

We display all ingredient forms. We use no proprietary blends (that hide dosages). So you precisely what's in every capsule.
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NutriCaps® delivery

We use no gelatin (from animals) or HPMC capsules. NutriCaps® are made from prebiotic fibre. For optimal absorption and gut support.
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Experience the world's most advanced joint health formula.



  • 4.5
Rated Excellent based on 50 reviews