A review.The resources, chem. constituents, extraction methods, bioactivities of Scutellaria Baicalenisis Georgi which was well-known traditional Chinese medicine and their applications in cosmetics were reviewed.With wide bioactivities of anti-bacterial, anti-fungi, anti-inflammatory, anti-allergy, anti-oxiding, free-radical scavenging, anti-radiation of UV, anti-radiation and inhibition of tyrosinase activity, baicalin and baicalein which were the main constituents in S. baicalenisis Georgi were used to prepare functional cosmetics for treating acne, sun-protecting, freckle-alleviating, skin-whitening, skin-antiaging and wrinkle-alleviating, to prepare oral products for treating periodontitis and to prepare lotions for external use.In conclusion, baicalin, baicalein and other main constituents in S. baicalenisis Georgi were the natural, high-effective, multi-functional cosmetic additives with all freckle-alleviating, skin-whitening, sun-protecting, anti-allergy, anti-inflammatory and anti-aging in one.