This document provides skin care compositions that can include one or more saponin extracts. In some cases, the skin care compositions provided herein can include a saponin extract (e.g., a Sapindus mukorossi extract). In some cases, the skin care compositions provided herein can include a Sapindus mukorossi extract, allantoin, carnosine, and a plant extract blend. The plant extract blend can include bioflavonoids (e.g., citrus bioflavonoids), a Brassica oleracea ver. italica (i.e., broccoli) extract, and an Aloe barbadensis leaf extract, or combinations thereof.本文件提供可包含一或多種皂素萃取物的皮膚護理組成物。在一些例子中,本文所提供的皮膚護理組成物可包含皂素萃取物(例如無患子萃取物)。在一些例子中,本文所提供的皮膚護理組成物可包含無患子萃取物、尿囊素、肌肽、與植物萃取物摻合物。該植物萃取物摻合物可包含生物類黃酮(例如柑橘生物類黃酮)、花椰菜(即青花菜)萃取物、與蘆薈葉萃取物、或其組合。