Five simple ingredients, chosen for their evidence-based links to immune health.

The hero ingredient in Capsid is star anise - and it’s what sets our formula apart from other immune supplements. Star anise contains shikimic acid, a natural compound used in the production of well-known antiviral medicines. In Capsid, star anise supports your body’s natural immune defences, to help build everyday resilience.

Well known for its role in immune health, vitamin C supports the body’s natural defences and helps protect cells from oxidative stress. In Capsid, it provides a strong foundation for everyday immune support.

Used for generations during cold and flu season, elderberry is rich in natural plant compounds known as flavonoids. Research suggests these may help reduce the severity and duration of viral symptoms. We’ve included elderberry in Capsid to add a natural, preventative edge to the formula.

An essential mineral for immune health, zinc contributes to the body’s ability to repair, heal and respond to viral challenges. Clinical trials even show benefits in treating common viral warts (verrucas), highlighting its important role in resilience. Often overlooked in daily diets, zinc is included in our Capsid blend to reinforce your immune system where it matters most.

Often called the “sunshine vitamin,” vitamin D3 helps regulate immune function and is especially important during the darker months, when levels can drop. It plays a vital role to help the immune system work as it should. In Capsid, vitamin D3 provides year round daily support.

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Capsid Doctor Created Immune Support Complex

£24.99 GBP
£24.99 GBP
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Multi Pack: Single Pack

1 pack = 30 day supply

  • A nutraceutical blend of five ingredients, chosen for links to immune health
  • Doctor-formulated in the UK
  • Supports your body’s natural defences and everyday wellbeing
  • Helps reduce tiredness and fatigue
  • Just two capsules a day – designed for busy people on the go!
  • Subscribe and save 20%, with convenient, delivery direct to your door. Pause or cancel at any time.
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No need to remember to restock, we’ll deliver straight to your door so you never miss a dose. It’s the smarter, simpler, and more affordable way to keep your immune system supported all year round.

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What is a nutraceutical?

A nutraceutical (like Capsid) is a supplement made from food-derived ingredients that provide benefits beyond basic nutrition – where a healthy diet meets medical expertise, offering daily support that goes further than vitamins alone.

Prevention starts with simplicity

Capsid’s simple blend of five ingredients (star anise, zinc, vitamin c, vitamin D3 and elderberry) supports your body’s natural defences – so you can focus on the life you love.

Turn your daily ritual into a subscription

We’ll deliver Capsid direct to your door, keeping your immune health topped up – and savings in your pocket! Plus, there’s flexibility when you need it - pause or cancel your subscription at any time.

Doctor-formulated

Created by practising GP Lisa Brigstocke, bringing first-hand medical insight and real patient experience to your daily health.

Five simple ingredients

No need for multiple supplements. Just our blend of five ingredients, carefully chosen to nourish your immune system and support everyday wellbeing.

Delivered to your door

Convenient, reliable delivery so your next bottle of Capsid arrives before you run out - keeping your routine effortless.

Made in the UK

Produced to the highest standards here in the UK, for quality you can depend on and the peace of mind that comes from local care.

Meet Dr Lisa Brigstocke

Capsid was founded by Dr Lisa Brigstocke, a GP with over 15 years’ experience as an NHS doctor. After seeing countless patients with viral illnesses - and experiencing her own daughter’s hospitalisation with flu - Lisa wanted a better way to make immune health simple and effective. Capsid is her answer: a clean, five-ingredient blend designed for everyday resilience.

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