The Kollo Difference
Most joint supplements hide a low dose of cheap, commodity ingredients behind a big promise. Flex+ does the opposite. Two of the most clinically studied joint actives in the world, at levels that matter, in a dual-capsule format built for absorption.
Flex+ is built around two of the most clinically studied joint actives in the world, chosen because they do different jobs. One works fast, one builds over time, so you get comfort you can feel early and support that keeps going.
The long-game active. In repeated human trials, AprèsFlex® has been studied for joint comfort and physical function that build steadily over weeks and months, with cartilage support measured as far out as six months.^
The fast mover. Univestin® has been studied for noticeable joint comfort and flexibility within the first days of use, working across several of the body's natural pathways at once rather than just one.^
Inside Every Capsule
Flex+ combines two clinically studied joint actives, Univestin and ApresFlex, with black seed oil and bone-supporting vitamins D3 and K2. A precision dual-capsule formula, free from unnecessary fillers.
![ApresFlex Boswellia Serrata [45.2mg]](http://us.kollohealth.com/cdn/shop/files/Apreflex_raw._{width}x.jpg?v=1782460279)
A concentrated, patented Boswellia serrata extract shown in clinical studies to support the body's natural inflammatory response. Chosen for its bioavailability and backed by multiple human trials.
Benefits
![Univestin Botanical Blend [135.4mg]](http://us.kollohealth.com/cdn/shop/files/Univestin_raw_{width}x.png?v=1782460265)
A patented botanical complex combining Chinese skullcap and black catechu extracts, clinically studied for their ability to support joint comfort, flexibility and range of motion.
Benefits
![Black Cumin Seed Oil [449mg]](http://us.kollohealth.com/cdn/shop/files/Black_seed_oil._{width}x.png?v=1782460265)
Cold-pressed Nigella sativa oil in the outer liquid capsule, rich in thymoquinone and providing a fat-soluble carrier that supports absorption of the vitamins alongside it.
Benefits
![Vitamin D3 [1,000 IU / 25mcg]](http://us.kollohealth.com/cdn/shop/files/Vitamin_D3._{width}x.png?v=1782460265)
Contributes to the maintenance of normal bones and to normal muscle function - a natural partner to the joint actives in Flex+. Also supports normal immune system function.
Benefits
![Vitamin K2 MK-7 [100mcg]](http://us.kollohealth.com/cdn/shop/files/Vitamin_K2._{width}x.png?v=1782460280)
Works hand in hand with Vitamin D3 and contributes to the maintenance of normal bones. Together they round out the Flex+ formula, supporting the strong foundation your joints depend on.
Benefits
In gold-standard clinical trials of the ApresFlex extract, participants saw meaningful changes from Day 1 to Day 180.^
Studied for better physical function, including stairs and walking, by 6 months.^
Studied for significantly less stiffness by Day 15, improving to 6 months.^
Studied for improved comfort from Day 5, building over 6 months.^
^ Based on published clinical studies of the ApresFlex (Boswellia serrata) extract at its studied dose. Individual results vary.
Whether you are chasing a personal best or just want to move through the day in comfort, Flex+ is built to support active joints.
High-impact training that asks a lot of knees, hips and ankles.
Rounds that depend on a comfortable, mobile swing.
Stop-start, twist-and-turn demands that load the joints.
Busy, active people who want to keep moving comfortably through a full day.
Keeping everyday movement easy as the years add up.
See how the clinically studied actives in Flex+ compare with other popular joint ingredients.
| Flex+ Dual-Capsule | Turmeric | Glucosamine | Chondroitin | |
|---|---|---|---|---|
| Two clinically studied actives | ✓ | ✕ | ✕ | ✕ |
| Studied for fast comfort (days) | ✓ | ✕ | ✕ | ✕ |
| Multi-channel support | ✓ | ✕ | ✕ | ✕ |
| Full dose, never diluted | ✓ | ★★★ | ★★ | ★ |
| Convenient once-a-day routine | ✓ | ✕ | ✕ | ✕ |
What Flex+ Supports
Two clinically studied actives, Univestin and ApresFlex, chosen to support joint comfort day to day.
Formulated to support flexibility and mobility, so you can stay active and move with ease.
Our dual-capsule format delivers the actives in their optimal form, with no cheap fillers or cut corners.
With vitamins D3 and K2, which contribute to the maintenance of normal bones, plus D3 for normal muscle and immune function.
The Kollo Standard
Loved By Thousands
Finally something that actually works
I cycle about 100 miles a week and my knees have been paying the price. I'd tried glucosamine and a couple of other supplements but nothing really made a difference. Flex+ is the first thing that's genuinely helped - took about 10 days but now my knees feel so much more comfortable on longer rides.
Goodbye sore knees
I'm a keen extreme sports girl, but god, it hurts as you get older. I found these on Kollo when buying collagen and after two weeks I feel 100% less achey.
Game changer for my morning stiffness
I'm 52 and have been dealing with stiff fingers and wrists for about two years now. Mornings were honestly miserable. Started taking Flex+ about three weeks ago and the difference is genuinely noticeable. My hands don't feel as locked up when I wake up.
Yoga feels easier again
I teach yoga five days a week, and my own joints have been struggling for the past year. 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.
Everything You Need To Know
Most people start to notice easier, more comfortable movement within 5-7 days of use. Joint actives work best taken consistently, so we recommend giving Flex+ a full 8 to 12 weeks as part of your daily routine.
Flex+ pairs two clinically studied joint actives, Univestin and ApresFlex, with black seed oil and bone-supporting vitamins D3 and K2. It is delivered in a precision dual-capsule format produced to high EU manufacturing standards.
The dual-capsule technology lets us pair the right actives together in their optimal form, delivering a targeted daily dose for joint comfort and mobility in a way a single capsule cannot.
Take the two capsules daily at whatever time suits your routine, morning or evening. They can be taken with or without food.
Flex+ is suitable for both men and women. Please check the full ingredient list if you have any known allergies. If you are pregnant, breastfeeding, taking medication or managing a health condition, check with your doctor before starting any new supplement.
Flex+ is made in the EU to high manufacturing standards, so you can trust exactly what is in each capsule.
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