Pre-launch · founding members only

From the gut up.
Where joint health actually starts.

A daily gut-joint formula that works where the problem does — your gut microbiome.

LYVA morning ritual
Coming soon
LYVA Flex
Daily gut-joint formula
Your gut. Your foundation.

The gut is where health begins.

Your gut microbiome is the foundation of how your body functions. An imbalanced gut affects your energy, your immunity, your recovery and your overall wellbeing.

People in northern climates face two compounding challenges: low sunlight means chronic Vitamin D deficiency, and modern diets lack the prebiotic fibre and polyphenols of the Mediterranean diet. LYVA delivers both.

Discover Flex →
In the UK
1 in 5

UK adults are Vitamin D deficient. Northern climates, low sunlight, modern diets.

The research

“The gut microbiome plays a central role in systemic inflammation and overall health.”

Emerging research consensus
The gut-to-joint pathway

How inflammation travels from your gut to your joints.

01 · Healthy gut

A balanced microbiome and an intact gut barrier keep inflammatory triggers out of the bloodstream.

02 · Barrier breakdown

Dysbiosis weakens the gut wall. Bacterial fragments leak into circulation and trigger systemic inflammation.

03 · Joint damage

Circulating inflammation reaches the joint, accelerating cartilage breakdown over time.

Active lifestyle
Our philosophy

Built on the science of what happens upstream of joint damage — not downstream of it.

An imbalanced gut microbiome drives systemic inflammation that reaches every organ — including your joints. LYVA is built around one evidence-backed truth: support the gut, modulate inflammation pathways, support tissue health. Every product. Every ingredient. Every dose.

Mechanism first.
Marketing second.
Always.

LYVA · Upstream
The range

One product. One daily habit.

LYVA Flex. The science your consultant rarely mentions. In a daily sachet.

LYVA Flex
Daily gut-joint formula

Flex

A daily formula for the gut-joint axis. Formulated around peer-reviewed research published in Science and Nature Communications.

11 botanicals Gut + joint
The science

The gut-joint axis. What the research now shows.

The gut microbiome is closely linked to systemic inflammation. This is the science your consultant probably hasn't mentioned.

01

Dysbiosis & leaky gut

When gut bacteria fall out of balance, the intestinal barrier weakens. Bacterial proteins enter the bloodstream — triggering systemic inflammation that targets connective tissue and joints.

02

Bacterial DNA in cartilage

Researchers have found gut bacterial DNA inside the joint lining and cartilage of arthritis patients. The gut and the joint are not separate systems. They never were.

03

The INSPIRE trial

University of Nottingham research found daily prebiotic fibre significantly reduced pain and improved physical function. UCL and Leeds researchers confirm gut-barrier changes precede joint damage by years.

Vieira et al. (2021). Diet, microbiota and autoimmune diseases. Lupus, 30(4), 479-489.
Huang et al. (2016). Bacterial DNA in synovial samples. Arthritis & Rheumatology, 68(7), 1753-1763.
Schott et al. (2018). Targeting the gut microbiome in osteoarthritis. JCI Insight, 3(8), e95997.
INSPIRE Trial — University of Nottingham. Prebiotic supplementation & physical function in knee osteoarthritis.
Clinical-grade ingredients

Every ingredient earns its place.

We source the forms used in clinical trials — not the cheap generic equivalent. The difference is not marketing. It is whether the product actually works.

65% AKBA extract

Boswellia Serrata

The joint-focused extract. AKBA is the specific compound that inhibits 5-LOX, an enzyme studied in relation to joint tissue. The clinical-grade form used in research.

7× absorption vs standard

Curcumin BCM-95

High-bioavailability curcumin in the form used in clinical studies. Standard raw turmeric has low bioavailability. BCM-95 is formulated for enhanced absorption.

Full formulation available on request to registered practitioners and wholesale partners only.

The Mediterranean connection

Spain reports significantly better health outcomes than the UK — likely influenced by higher Vitamin D from sunlight and the widely studied benefits of the Mediterranean diet: olive oil polyphenols, omega-3 rich oily fish, and prebiotic-rich vegetables. LYVA Flex delivers the key botanical mechanisms of that diet in a daily sachet.

The Mediterranean diet. Without moving to Seville.

Outdoors
Founder's note

Why this exists.

In 2026 I had to stop working with my hands. Declining mobility. Physical work that was becoming impossible. I read the research on gut health and systemic inflammation — the gut-joint axis, Vitamin D deficiency in northern climates, the INSPIRE trial. The mechanism was real. The products built around it were not.

I looked at what was commercially available. Underdosed turmeric capsules. Generic glucosamine from the 1990s. Nothing that took the science seriously. So I built what I wanted to find.

The research is clear that women are significantly more affected by arthritis than men. Yet the options available to women are the same inadequate products everyone else gets. LYVA Flex is designed to change that — not with wellness claims, but with clinical science, clinical-grade ingredients, and honest dosing.

If you're looking at the research and wondering what else is available — this is where we started.

William Tyler-Street · Founder
For people like you

For everyone who uses their body — and wants to keep using it.

Morning ritual
Gardening
Strength training
Boxing
Yoga
Outdoors
Early access

Be among the first.

Join the waitlist for early access and founding member pricing when LYVA Flex launches. No spam. Ever.

You're on the list. We'll be in touch.
No spam · founding member pricing · unsubscribe anytime