Brewer’s yeast has cellular components that are potential allergens causing type 1 hypersensitivity reactions, with the immune system producing IgE antibodies. These antibodies trigger the release of histamine, causing allergic gastrointestinal symptoms, atopic dermatitis, or anaphylaxis in rare instances. Healthcare professionals use this test to determine allergic status and guide allergen-specific immunotherapy.

Important note: Minimum volume is 1 mL and 0.5 mL for every additional allergen.