Winter was an ideal season to change your skincare. Oils and creams are welcome in our routines to avoid dehydration and nourish the skin. Klairs, a K-beauty brand, developed a Fundamental line which includes Ampoule Mist and Water Oil Drop. The Fundamental line is a skincare line based on premium ingredients. I had a chance to try Klairs Fundamental Water Oil Drop, and I want to share my experience with you.