With so many options for charcoal paste, luckily we carry the best one! With NO synthetic additives, preservatives, foaming agents, fluoride, salt, baking soda, artificial colors or flavours, our 100% organic paste is a safe option for your enamel and keeps those surface stains from settling in. Each container has enough for 250 brushes! Safe for ages 12 and above. Safe for pregnant and nursing women.