How To Whiten Teeth With Activated Charcoal: 5 DIY Methods
2. Charcoal with Salt. Mix 1/4 teaspoon of charcoal with 1/4 teaspoon of sea salt. Use this mixture to brush your teeth. Repeat the process 2 times a week. 3. Charcoal Mouthwash. Mix 1/2 teaspoon each of water and powdered activated charcoal. Swish this mixture in your mouth for 5 minute.