Source Naturals, Aller-Response, 180 TabletsSource Naturals Aller Response Description Seasonal Immune Support Bio Aligned Formula Source Naturals Aller Response is a Bio Aligned seasonal formula that provides systemic support for the sinuses, lungs, and immune system. Aller Response features quercetin, which has demonstrated the ability to inhibit the release of histamines, according to human cell culture studies. The formula contains powerful herbs, including ginger, ginkgo biloba, amla, and