Plant used most often to enhance the flavor of foods. Like all plant extracts, sage contains components that function as antioxidants. There is some potential for irritation with sage extracts, but the risk is relatively low at the amounts used in topical skincare products. Taken internally, sage has anti-inflammatory properties though there's only limtied research demonstrating that this applies when sage is used on skin. The anti-inflammatory compound in sage is believed to be ursolic acid (Source: Planta Medica, September 2007, pages 1.190-1,191; and Journal of Ethnopharmacology, May 2001, pages 125-132).