About this item Unique proteolytic enzyme & bioflavonoid formula designed to support the body's immune response.* Quercetin is a potent bioflavonoid that protects cells and tissues against free radicals.* Bromelain, papain, and pancreatin provide a mixture of protein-specific and other enzymes that help ensure proper breakdown of protein molecules that may otherwise cause occasional irritation.* Contains: Milk. Free of the following common allergens: eggs, fish, shellfish, tree nuts, peanuts, wheat, gluten, and soybeans. Contains no artificial colors, flavors, or preservatives. Trusted by healthcare practitioners since 1969, Klaire Labs products are developed closely with physicians and are intended to be used as directed by a healthcare practitioner.