Vitamin C in a buffered powder, balanced with calcium, magnesium and potassium carbonates so the formula is non-acidic rather than sharp.

That buffering is the point. Plain ascorbic acid is harsh on a sensitive stomach, and a powder that stirs into water lets you take exactly the amount your practitioner has set rather than whatever a capsule happens to hold.

The only other ingredient is microcrystalline cellulose. No flavouring, no sweetener, nothing a reactive patient has to think about, which is what Allergy Research Group has built its name on across more than 45 years of hypoallergenic formulating.

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