The Sulwhasoo First Care Activating Serum is a best-selling K-beauty serum that's extra brightening and hydrating thanks to its brand-new tech-fueled formula. The balancing and nourishing Sulwhasoo First Care Activating Serum follows four other iterations of the serum. This one sets itself apart with a formula that was created thanks to new data mining methods that gave researchers the ability to draw inspiration from 3,912 formulas and 1,041 ingredients found in ancient Asian literature. Armed with more data than ever, researchers refined the ratios of the active ingredients and herbs in its proprietary blend.
Since the original launch of the serum in 1997, 35 million bottles have been sold worldwide and the formula is so popular that a bottle sells every 10 seconds in Korea.