how long to leave on charcoal mask
Rinse your face and neck and pat dry. Apply the mask to your face and neck in a thin, even layer. Let it dry for 10 to 15 minutes. Rinse your face well with warm water. Any leftover mask can be stored in the refrigerator for up to five days. Activated charcoal can be purchased at most health food stores and at some drug stores. It is mostly sold in capsule form, but it can also be found in powder form.