KnowraAllergenLinked fromLinked fromThe 13 pages that link to Allergen, each with the reason it gives.All 13Broader topic 2Related 6Narrower topic 3Compared with 2PoisonCompared with: Allergens cause harm through immune sensitivity, rather than necessarily through direct toxic action.Ingredients of cosmeticsCompared with: A useful cosmetic ingredient can still cause allergic contact reactions in some users.