This recipe is from bodyunburden.com blog. For more details and more DIY recipes, check out the blog.
2 capsule of activated charcoal
1/2 tsp of bentonite clay
2 tsp of water
Mix (using a plastic or wooden spoon only) all the ingredients together into a smooth paste, and spot test the mask on your cheek or underside of your wrist. Wash face with a mild cleanser and pat partially dry. Apply the mask evenly avoiding the delicate skin around the eyes and lips, and let sit until dry (~7-10 minutes). As the mask dries, it feels tight on the skin, which can sometimes feel a little itchy. (If you start to feel uncomfortable, wash the mask off.) After the mask dries, wash it off, pat face gently with a clean towel, and let the skin breath or apply a mild all-natural moisturizer.