BioResiliant is a natural seasonal allergy supplement for dogs. It features only the best active ingredients which work together to maintain normal histamine levels and supports the natural keratinization process. Mangosteen addresses allergies while supporting intestinal health. Curcumin is a strong antioxidant found in turmeric and quercetin stabilizes the cells and releases histamine in order to maintain proper levels within a dogs system. Turkey tail is a strong antioxidant that aids the immune response and organic inulin is a prebiotic that provides immune support. Product Benefits: Made in the USA!