How do Charcoal Facemasks Work?
A charcoal facemask works by applying activated charcoal over the surface area of your face. The activated charcoal can then do its job as a super-absorber, attaching itself to dirt, oil, toxins, and impurities.
To help visualize how good activated charcoal is at absorption, check out this video:
You can think of the water as your skin and the blue chemical as the dirt and oil on your skin. The charcoal facemask works in the same way, by absorbing what you don't want so you're left with clear, fresh skin.
After you apply the facemask to your skin, it has time to settle in do its job. Ideally, nearly the entire surface area of all the little pieces of charcoal powder within the mask will have a chance to grab onto something. When you remove the face mask, the dirt, oil, toxins, and impurities will stick to the charcoal and will leave your pores.
Activated charcoal has a gritty texture, so charcoal facemasks can also provide exfoliation. Applying the facemask and the process of removing it aid in the exfoliation process.