You can buy activated charcoal powder for teeth whitening from major national retailers like Amazon , Target , and Walmart . It is also available through specialized dental whitening brands and some health-focused local stores.

: Carries various brands including Viva Doria and White Glo Deep Stain Removing Powder (~$14.99).

: Features a massive selection such as Lumeeno , Active Wow, and Lagunamoon .

These retailers offer a wide variety of brands, ranging from pure food-grade charcoal to flavored tooth polishes.