Free, practical tools to help UK supplement users understand labels and ingredients, calculate recurring costs and organise regular purchases.
Look up ingredients and additives
UK Supplement Ingredients and Additives Directory
Search 82 fillers, binders, coatings, sweeteners, colours and other ingredients. See why each may be used and where its source can matter for vegan or allergen checks.
Search the ingredients directory →
Convert a mineral compound amount
Elemental Mineral Dose Calculator
Choose a clearly defined magnesium, iron or zinc compound and enter its mass to estimate the elemental mineral amount and percentage of the UK labelling NRV.
Open the elemental mineral calculator →
Understand a supplement label
UK Supplement Label Checklist
Work through ten practical checks covering serving sizes, declared amounts, ingredient forms, NRVs, specialist units, allergens, cautions and health claims.
Calculate cost and supply
Free UK Supplement Cost and Reorder Planner
Use the on-page calculator to estimate cost per day, per 30 days and per year, how many full days a pack may cover and a suggested reorder date.
Open the cost and reorder calculator →
An editable Excel workbook and printable PDF are also available. No email address or sign-up is required.
Our approach to supplements
These resources reflect our approach to clear labelling and straightforward product information. If you would like to see the supplements we apply those standards to, browse our supplement range.
About these resources
These tools are designed to make supplement information easier to understand and organise. They do not recommend whether to take a supplement, how much to take or whether products can be combined. Follow each product label and ask a pharmacist, GP or other qualified healthcare professional when appropriate.