Use the MARY&MAY Vegan Collagen Charcoal PDRN Gel Mask after cleansing and toner. Apply the mask to fit the contours of your face, then leave on for 10 to 20 minutes to allow the vegan collagen, charcoal, and PDRN to work deeply. Gently remove, pat the remaining essence until fully absorbed, no rinsing needed, then continue with your usual moisturizer. Ideal 2 to 3 times a week for firmer, brighter, and purified skin.