Plant also known as summer lilac or butterfly bush (because the flowers are a food source for butterflies). The extracts of this plant have potent antioxidant properties and also serves to soothe skin.
References for this information:
Journal of Enzyme Inhibition and Medicinal Chemistry, August 2009, issue 4, pages 993-997
Phytochemistry, September 2003, issue 2, pages 385-393.