The principles of the Korean beauty routine have been steadily making their way stateside, and our skin is so lucky for it. What started out as a love affair with sheet masks (thank God for those potent moisture bombs!) has now bloomed into a bevy of beauty vloggers and skincare experts letting us in on the genius, gentleness, and skin-changing techniques of K-beauty. Founder of quintessential K-beauty online store Soko Glam Charlotte Cho spoke with Byrdie about some her favorite tips. Here's what we learned!