Microwave the gelatin and water in a small bowl for 20 seconds, until dissolved, then mix in the lemon juice, matcha, and clay until fully combined.
Wash and dry your face, then apply the mask in a thin layer using a flat brush or your fingertips. Let sit for 10-15 minutes, until it begins to easily peel off.
Peel the mask off, then wash your face with warm water and a washcloth to remove any remaining bits and finish your skincare routine.