Compare joint support supplements by declared active amounts of glucosamine sulphate or HCl, chondroitin, MSM, added Vitamin C, shellfish allergen warnings and daily portion cost.
What are the core active ingredients in joint formulas?
- Glucosamine: available as glucosamine sulphate or glucosamine hydrochloride. Check declared elemental glucosamine per daily portion.
- Chondroitin: check declared chondroitin sulphate weight per portion.
- MSM (Methylsulfonylmethane): check declared MSM amount.
- Vitamin C: EU authorised claims permit Vitamin C to claim contribution to normal collagen formation for the normal function of cartilage and bones.
Check shellfish allergens on glucosamine labels
Glucosamine is frequently derived from shellfish/crustaceans. Under EU labelling rules, crustacean allergens must be clearly highlighted in the ingredient list. Individuals with shellfish allergies should read the full allergen box carefully or choose vegetarian/fermented glucosamine sources.
See our label review principles in our Editorial Standards.
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Prices include Irish VAT.
Sources used for this guide
- Commission Regulation (EU) No 432/2012 — authorised health claims for Vitamin C and collagen function.
- Regulation (EU) No 1169/2011 on food information to consumers — mandatory crustacean allergen highlighting.
- Food Safety Authority of Ireland: distance selling guidance — Irish market food labelling requirements.
