Allergens such as laundry detergents, hand lotions, and grass are classified as:

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Allergens that cause a reaction when they come into contact with the skin or mucous membranes are referred to as contactants. Laundry detergents and hand lotions are examples of contactants, as they come into contact with the skin. Grass can also be a contactant allergen, as it may cause an allergic reaction on the skin or through inhalation. Therefore, the best classification for these allergens is as contactants.

Allergens Such as Laundry Detergents, Hand Lotions, and Grass Are