Can this powder replace my toothpaste completely, and how often should I use it?

This product suits people who like alternating between formats: it is typically used as an occasional, more intensive cleansing step a few times per week, alongside a regular toothpaste, rather than as the only product at every brushing.

There are practical reasons for that rhythm. The powder's job is polishing — removing plaque and surface pigment mechanically. That kind of intensive surface cleaning is most useful periodically, when stains have had time to build up; doing it at every single brushing gives diminishing returns. A conventional toothpaste, meanwhile, may carry other components of your routine (such as fluoride, if your dentist recommends it) that a whitening powder is not meant to provide.

A common pattern is to brush with the powder two or three times a week — for example, in the evening after a day with a lot of coffee or red wine — and use your normal paste the rest of the time. Heavy tea or coffee drinkers and smokers, who the product is largely aimed at, tend to get the most visible benefit from this kind of regular but spaced-out use.

How your teeth feel is the best guide to frequency: if they stay comfortable, an every-other-day rhythm is workable for many people, and there is no need to use it more often than your staining actually requires.