
Product information
Overview
UC-II® Triple Action Collagen Capsules
Advanced joint collagen, clinically proven
The perfect partner to Flex HA, UC-II® collagen provides a powerful additional layer of joint support. This clinically studied ingredient helps maintain healthy cartilage, supports strong and flexible joints, and aids everyday recovery at just 40mg per day.
Unlike standard collagen powders or hydrolysed collagen supplements, UC-II® is a unique form of undenatured Type II collagen that works through a completely different and far more targeted biological pathway. We combine it with manganese and Vitamin C to enhance and maximise joint support.
How does UC-II® work?
UC-II® collagen works via a process called oral tolerance, a natural immune system response that supports joint health from within.
As we age, the immune system can become over reactive and begin to mistakenly target the body’s own cartilage. This low grade immune activity contributes to stiffness, discomfort and cartilage breakdown over time.
When undenatured Type II collagen is taken orally, it interacts with immune cells in the gut. This helps “re-educate” the immune system so it becomes less reactive towards joint cartilage. Clinical studies show that UC-II® collagen can significantly:
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Reduce joint discomfort
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Improve joint function
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Provide long-term cartilage protection
This effect is seen at just 40mg per day, making it one of the most efficient collagen supplements for joint care. Rather than simply providing raw building blocks like standard collagen, UC-II® helps protect what you already have.
Why Type II Collagen Matters?
There are three main types of collagen in the body:
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Type I – supports skin, hair and connective tissue
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Type II – supports joints and cartilage
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Type III – supports skin and muscle structure
Articular cartilage is made up of approximately 85–90% Type II collagen.
This makes Type II collagen the most important and most effective form for targeted joint support.
Unlike marine or bovine collagen (Types I and III), which are used in much larger doses for skin and beauty, Undenatured UC-II® collagen is required in very small amounts to influence joint health because it works through immune regulation rather than simple supplementation.
What makes UC-II different?
UC-II® is a patented, clinically studied form of undenatured Type II collagen, naturally sourced from chicken cartilage and processed at very low temperatures to preserve its structure.
“Undenatured” means the collagen maintains its three-dimensional structure, which is essential for triggering oral tolerance. This makes UC-II® far more effective for joint support than hydrolysed collagen powders
Why joints change with age?
As we get older, the body produces less collagen and the collagen it does produce is lower in quality. Cartilage becomes weaker, and recovery slows, which can lead to:
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Stiff, achy joints
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Reduced mobility
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Slower recovery after activity
UC-II® works to help protect cartilage, support joint comfort, and maintain mobility as part of a comprehensive joint care regime.
Ingredients & composition
The recommended daily levels for UC-II® Triple Action Collagen Capsules
The recommended daily supply and what is administered.
What is administered?
- UC-II Collagen 40mg
- Manganese 1mg
- Vitamin C 27mg
Why Choose Riaflex?
We are dedicated to formulating and producing the highest specification supplements on the market because we are passionate about changing the lives of dogs, cats, horses, and their owners.
Free Delivery over £55
Free UK delivery on every order above the threshold.
Tried & Trusted
Trusted by 1000’s of pet owners worldwide
Visible results in 6 weeks
Register today and get 10% off your first order.
Formulated by Experts
Experienced sports and animal practitioner.
Frequently asked questions
Can Riaflex joint support be used with prescription only medicine?
Our supplements can be used alongside most prescription only medicines (with the exception of Boswellia). We haven't extensively tested our supplements with all medications so we recommend checking with your doctor first. If you have specific questions about certain medications and what supplements you can use from our range then please contact our customer care team before purchasing, on 01275 627885 or email contact@riaflex.co.uk.
How soon will I notice a difference?
Most people will notice a difference after 2-4 weeks use of Flex HA. Boswellia takes effect after around 7-14 days and UC-II collagen has been scientifically proven to show a difference after 8-12 weeks.
Do joint supplements work?
Yes! When dosed at the correct level they can have a significant impact on joint comfort and mobility.