Our immunity supplements range is for anyone who wants to keep their defences covered day to day, not just when they feel run down. Vitamin C, vitamin D, and zinc each contribute to the normal function of the immune system. Whether you're heading into a British winter or keeping year-round basics in place, this is where to start.
We've filtered it down to bioavailable forms and useful doses - no fairy-dust amounts, no inflated claims. Viridian's botanicals sit alongside LSC's own zinc picolinate and high-strength D3. The entire range is vegan, clearly labelled, and easy to compare. Browse the products below and pick what fits your routine.
Read more about immunity supplements
Why most immunity supplements don't work
The supplement industry loves a well-marketed immunity blend. Twenty-plus ingredients, impressive numbers on the label, and a price that suggests it must be doing something. Often it isn't.
The problem is dose. A lot of popular immunity products include vitamin D at 200iu and zinc at a fraction of what's useful, then dress the label with herbs nobody can identify. Selenium also contributes to normal immune function, but only when the dose is meaningful. Small amounts added purely to get a name on the label do very little.
What actually works is simple: adequate vitamin D (critical from October to March in the UK), a reliable vitamin C source, zinc in a properly absorbed form, and a few well-evidenced botanicals if you want to build on the basics. We stock the ones that earn their place.
Who this range is for
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Year-round basics. If you want consistent daily cover rather than reacting when you feel rough, vitamin D, zinc, and vitamin C are the foundation.
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People replacing a generic multi. Many multivitamins include immunity nutrients at minimal doses. Standalone products let you control what you're actually getting.
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Botanical supporters. If the core nutrients are covered and you want to add elderberry, garlic, or beta glucan alongside, Viridian's range is a strong starting point.
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Plant-based customers. The entire collection is vegan - no gelatin capsules, no guesswork.
How to choose
Start with the fundamentals. LSC D3 4000iu is the option most UK adults need through autumn and winter - vitamin D contributes to normal immune function and maintenance of normal bones. Pair it with LSC Zinc Picolinate 20mg, which uses the picolinate form for better absorption than the zinc oxide you'll find in cheaper alternatives.
For a broader routine, pair this range with the Probiotics & Gut collection. Gut health and immune function are closely connected, and running both together is one of the most sensible daily foundations you can build.
Is vitamin D really necessary year-round in the UK?
From roughly October to March, the sun angle in the UK isn't strong enough for your skin to make vitamin D. Most UK adults are well below optimal levels for a significant chunk of the year. LSC D3 4000iu is the higher-strength option for winter. Vitamin D contributes to normal immune function and maintenance of normal bones.
Can I take vitamin C, D, and zinc together?
Yes. These three work through different pathways and there's no issue with taking them as a daily combination. It's one of the most common routines our customers run. Browse the Vitamins & Minerals range for the individual options.
