A traditional Korean medicine used for more than 2000 years. Regarding skin care, its main thing seems to be enhancing skin nutrition and metabolism as a result of improving blood circulation.
It also contains biologically active components referred to as ginseng saponins (ginsenosides) that have potent antioxidant properties.
Show me some proof
- Kang, Tong Ho, et al. "Effects of red ginseng extract on UVB irradiation-induced skin aging in hairless mice." Journal of ethnopharmacology 123.3 (2009): 446-451.
- Aburjai, Talal, and Feda M. Natsheh. "Plants used in cosmetics." Phytotherapy research 17.9 (2003): 987-1000.