How many times have you read the back of a clay mask label, or any other mask label and saw the words "leave on until dry". Well I'm here to tell you this couldn't be the furthest from the truth. Why you ask? I have the answer for you.
Most people use a clay mask because they have black heads and break outs. Imagine your skin is like a sponge with holes in it. Now imagine this sponge is damp and there is debris in the holes. When the sponge is dried out, what happens to the debris? It gets shrink wrapped into the holes and is very difficult to get out. This happens when your skin becomes dehydrated. Black heads become very difficult to remove.
Most clay masks are designed to help remove debris. The clays are detoxifying and draw dead skin cells and oxidized oil to the surface. The only caveat is the mask must remain moist in order to work.
When the mask is first applied it is moist and creamy. It should be applied in a thick even layer. This is how it should remain in order to work properly. When the mask is moist it is active and the skin is absorbing the active ingredients in the skin. It should be applied in a thick even layer because when you occlude the skin it is working harder to breath. (yes skin breathes) While the mask is on, the skin struggles in a way pushing out debris. So two things are happening. First, ingredients are being absorbed and second debris and toxins are being pushed to the surface. If the mask is allowed to dry, moisture from the skin starts to be pulled away from the skin. If moisture is pulled from the skin, it becomes dehydrated. Enter the sponge analogy.