Place all ingredients in a deep bowl. Whip briskly with a fork or whisk until foamy, 1-2 minutes.
Wash and dry your face, and then, using your fingers or a small brush, spread the mixture over your entire face, avoiding the eye area. I like to spread it on as thickly as possible without it dripping.
Leave the mask on for 30 minutes, or until it has completely dried and feels tight on your skin.
Rinse the mask off with warm water, using a washcloth to gently wipe the mask away.
Splash your face with very cold water and gently pat dry.
Recipe by The Kitchen McCabe at https://www.thekitchenmccabe.com/2013/11/14/diy-brightening-and-tightening-face-mask/