Sensitive Care Essence In the next step, take an appropriate amount and spread it evenly over your skin. Tip 1. If the skin is toxic, moisten the ampoule on the mask sheet for 15-20 minutes. If you put it on the skin and take it off, you can feel the vital skin by nourishing it. Tip 2. On the day of rapid moisture/moisture, moisten ampoule in cotton pad Put it on like a pack and remove it after 5 minutes for quick moisture/moisture.