How often can I use the iWhite teeth whitening products?

This depends on which iWhite product you’re using. For example, the whitening kits (iWhite Instant Whitening Kit, iWhite Instant2 Whitening Kit and iWhite Dark Stains Whitening Kit) can be used every day for 5 consecutive days, but the iWhite Express kit can only be used once a week. It’s advisable to check the instructions for use of every product before application.

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