I absolutely love this face mask. so you apply the mask and the serum comes on the back of the black sheet you open it up and you place it on your face. I like that there isn't much of a smell to it and it doesn't seem to dry your face out so keeping it on 15 to 20 minutes is what seems to be recommended. if I have the time I like to leave it on an extra 10 minutes. after you remove the plastic mask then you use your fingertips to gently massage the product into your skin. if you have a micro needling system now is the time to use it. I highly recommend this product.