292 Walgreens, a drugstore chain, is selling PearlBrite Concepts' teeth whitening pens,PearlBrite Pen, in South Florida, US.

The PearlBrite Pen contains main ingredient, Carbamide Peroxide in 44%, which helps in whitening the teeth.

PearlBrite said the teeth whitening pens, which are safe for all teeth and gum types, will not soften enamel or existing fillings, if instructions and frequency of use guidelines are followed.

If used regularly, the PearlBrite Pen is the perfect way to brighten smile and will whiten teeth up to 10 shades.

PearlBrite president Leonard Tucker said, "We’re very excited to have the number # 1 drug retailer in the world making PearlBrite’s teeth whitening Pens available to consumers in 292 Walgreens in South Florida."