Be aware: Turmeric has natural yellow pigments which will briefly stain the toothbrush bristles, but it doesn't forever stain teeth. To circumvent staining, use a independent toothbrush committed to the turmeric whitening system and watch out when rinsing your mouth to avoid splattering the mixture. But research advise dilution https://www.youtube.com/watch?v=N6k2-d3oegg