25 scientific studies & human clinical trials.

Flex+ combines AprèsFlex® Boswellia and Univestin®, two patented ingredients supported by multiple human clinical studies. These researched compounds are designed to help support joint comfort, mobility and flexibility.

Helps Reduce Joint Pain and Stiffness

Joint pain is often driven by inflammation. AprèsFlex® Boswellia is a concentrated extract shown in studies to support the body’s natural inflammatory response, With results in as little as 5 days

Supports Faster Improvements in Mobility

Univestin® is a clinically studied botanical complex designed to support improvements in joint comfort, flexibility and range of motion, helping you move more freely during daily activity and exercise.

Advanced Dual-Capsule Delivery

Flex+ uses an advanced duo-cap system The outer liquid capsule contains black seed oil with vitamins D3 and K2, helping support the body’s natural inflammatory response

25 scientific studies & human clinical trials.

Flex+ combines AprèsFlex® Boswellia and Univestin®, two patented ingredients supported by multiple human clinical studies. These researched compounds are designed to help support joint comfort, mobility and flexibility.

Helps Reduce Joint Pain and Stiffness

Joint pain is often driven by inflammation. AprèsFlex® Boswellia is a concentrated extract shown in studies to support the body’s natural inflammatory response, With results in as little as 5 days

Supports Faster Improvements in Mobility

Univestin® is a clinically studied botanical complex designed to support improvements in joint comfort, flexibility and range of motion, helping you move more freely during daily activity and exercise.

Advanced Dual-Capsule Delivery

Flex+ uses an advanced duo-cap system The outer liquid capsule contains black seed oil with vitamins D3 and K2, helping support the body’s natural inflammatory response

Next Generation Joint Support

5 Days
Reduced joint stiffness and more comfortable movement in as little as 5 days.
25
Scientific studies & human clinical trials, across Flex+’s two active ingredients: AprèsFlex® and Univestin®
4
Contains four Nutrients | AprèsFlex®, Univestin®, Black seed oil, Vitamin D3 & K2
60
Each pack contains 60 capsules, simply take 2 per day to complete your 30-day supply.e
5 Days
Reduced joint stiffness and more comfortable movement in as little as 5 days.
25
Scientific studies & human clinical trials, across Flex+’s two active ingredients: AprèsFlex® and Univestin®
4
Contains four Nutrients | AprèsFlex®, Univestin®, Black seed oil, Vitamin D3 & K2
60
Each pack contains 60 capsules, simply take 2 per day to complete your 30-day supply.e

SUPPORT FOR THE WEAR AND TEAR OF DAILY LIFE

Joint discomfort doesn’t just come from injury, it builds over time through training, repetition and everyday movement.

Flex+ is formulated to support joints affected by high-impact activity like running, repetitive strain such as tennis or golf, and the natural wear and tear associated with ageing.

Using clinically studied ingredients, it helps support the body’s response to inflammation, a key factor linked to stiffness, reduced mobility and joint discomfort.

Ingredients like AprèsFlex® and Univestin® have been researched for their ability to support joint comfort, flexibility and movement in as little as 5–7 days.

Whether it’s training load, active lifestyles, or age-related joint changes, Flex+ is built to support your joints so you can keep moving.


SUBSCRIBE AND SAVE

Subscribe to any of our products or curated wellness bundles and save up to 30% off the RRP on every delivery. Enjoy the convenience of automatic refills, flexible delivery schedules, and the freedom to skip or cancel anytime.

Everything You Need to Know!

Frequently Asked Questions

Flex+ is designed to support joint comfort, flexibility, and everyday mobility, helping you stay active and move comfortably over time.

It’s ideal for people who:

  • Experience stiff or uncomfortable joints
  • Live an active or on-the-go lifestyle
  • Want to support long-term movement and joint health
  • Are training, walking regularly, travelling, or simply aiming to stay mobile as they age

Flex+ works gradually and consistently, supporting joints as part of a healthy, active lifestyle rather than offering a short-term fix.

Flex+ uses an advanced dual-capsule system to support optimal delivery and absorption of its ingredients throughout the day.

  • The inner capsule contains clinically studied plant extracts (Univestin® and AprèsFlex®) commonly used to support joint comfort and flexibility
  • The outer capsule contains fat-soluble nutrients (black cumin seed oil, vitamin D3, and vitamin K2), supporting bones, muscles, and overall movement

By separating these ingredients, Flex+ is designed to support effective absorption without unnecessary fillers - it’s joint support that’s thoughtful, targeted, and built for real life.

Flex+ is suitable for men and women and is designed for long-term daily use.

It’s:

  • Vegan-friendly
  • Gluten-free
  • Made without unnecessary additives

Flex+ can be taken year-round as part of your regular wellness routine and works well whether you’re highly active or simply focused on maintaining comfortable movement day to day.

For best results, take one capsule twice daily with food - one in the morning and one in the evening.

Consistency is key. While individual results vary:

  • Some people notice improvements in comfort and flexibility within a few weeks
  • Ongoing benefits typically build over time with regular daily use

Flex+ is designed to support long-term joint care, so continued use helps maintain mobility and movement as part of an active lifestyle.


  • Third-party tested

    We hold ourselves and our ingredients to the highest standards.

  • Quality ingredients

    We're dedicated to using scientifically backed, high-quality natural ingredients.

  • Non-GMO

    We carefully evaluate every ingredient, ensuring they are non-GMO.

Third-party tested

We hold ourselves and our ingredients to the highest standards.

Quality ingredients

We're dedicated to using scientifically backed, high-quality natural ingredients.

Non-GMO

We carefully evaluate every ingredient, ensuring they are non-GMO.

5.0
Rated 5.0 out of 5 stars
Based on 11 reviews
Total 5 star reviews: 11 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
100%would recommend this product
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11 reviews
  • SW
    Sarah W.
    Verified Reviewer
    Reviewing
    FLEX+ JOINT SUPPORT
    I recommend this product
    Rated 5 out of 5 stars
    8 hours ago
    Amazing

    This product has been very helpful with helping me deal with arthrites in my feet. Thank you Kollo, you have cracked it again

  • AQ
    Amelie Q.
    Verified Reviewer
    Reviewing
    FLEX+ JOINT SUPPORT
    I recommend this product
    Rated 5 out of 5 stars
    9 hours ago
    Yoga feels easier again

    Rachel K.

    I teach yoga five days a week, and my own joints have been struggling for the past year or so – particularly my knees and ankles. I was starting to worry I'd have to cut back on classes. Tried Flex+ on a whim and within about six days I felt a real shift. My joints feel less inflamed, and I'm able to move through poses without that grinding sensation. It's made such a difference to my practice and my teaching. So glad I gave these a go.

  • AG
    Amber G.
    Verified Reviewer
    Reviewing
    FLEX+ JOINT SUPPORT
    I recommend this product
    Rated 5 out of 5 stars
    13 hours ago
    Brilliant product.

    Better than glucosamine

  • DP
    Dave P.
    Reviewing
    FLEX+ JOINT SUPPORT
    I recommend this product
    Rated 5 out of 5 stars
    14 hours ago
    Shoulders feel so much better

    I work as a plasterer so my shoulders take an absolute hammering every day. By the time I'm home, I can barely lift my arms above my head. Started these about a month ago after seeing them on the Kollo site and the relief has been brilliant. My shoulders still ache after a long day, but it's manageable now rather than unbearable. I'm moving better and sleeping better because I'm not waking up in pain. Genuinely impressed.

  • FP
    Fran P.
    Verified Buyer
    Reviewing
    FLEX+ JOINT SUPPORT
    I recommend this product
    Rated 5 out of 5 stars
    14 hours ago
    Love this!!

    This is the first joint supplement I've actually noticed a difference with. I've only been taking them for a couple of weeks but my knees already just felt better and less stiff in the morning...i'm finding it much easier to get up. I'll definitely keep taking it!