Against which discolorations is the Black Powder particularly effective?
The activated carbon adsorbed with the pores of the tooth surface discoloration and plaque. In particular, discoloration of red wine, coffee or cigarettes - just the usual. It becomes more difficult with deep discoloration or naturally yellow teeth. Professional bleaching is certainly required for this. Activated charcoal is so incredibly well suited for the small discolorations because a lot can be done without artificial additives and with a 100% vegetable product.