inClover BioResiliant Allergy contains only the top quality, proven, natural ingredients to provide allergy support to help your pet feel their very best. It includes Mangosteen as a key ingredient due to it’s powerful antioxidant and catechins content! Turkey Tail Mushrooms add beta glucans, important in the support of the immune system. Turmeric contributes Curcumin, another powerful anti-oxidant, and Quercetin stabilizes the cells and help maintain histamine levels.