COSRX- The Niacinamide 15 Serum

Directions: Use ideally in the PM, no more frequently than twice per week. Clean face and wait for skin to dry. Do not use on wet skin. Apply evenly across face and neck using your fingertips. Leave on for no more than 10 minutes. Rinse with lukewarm water. Avoid the eye contour and contact with eyes both during application and rinse off.