Country Life’s Aller-Max^® is a unique complex based on the key ingredients of Quercetin,Bromelain, and Vitamin C. Quercetin is a naturally occurring non-citrus bioflavonoid derived fromflower buds. Bromelain is an enzyme derived from pineapple stem. Aller-Max^® also providesVitamin C as well, alongside herbs like Stinging Nettle and Cayenne.