Easy, convenient, and essential for great dental hygiene, the Smileactives Power Whitening Gel works with your favorite toothpaste to deliver vibrant whitening. Get a whitening experience without a trip to the dentist or the professional cost associated. The gel has been clinically shown to whiten teeth an average of 6 shades in 30 days (when referencing shade guides commonly used by dentists) and preliminary results of a brighter & whiter smile can be seen in as little as 7 days. This is not your average whitening toothpaste. This gel uses hydrogen peroxide as opposed to carbamide peroxide used in other at-home teeth whitening products.The gel features Polyclean technology, which boosts stain removal from several causes (coffee, wine, everyday wear & tear, etc.), and generates an ultra-fine texture foam that is designed to whiten the whole tooth, not just the front, by carrying the active whitening ingredient to all the grooves and crannies. The Smileactives Advanced Teeth Whitening Pen provides a whitening boost that seeps into nooks & crannies, and its soft-bristle brush provides quick and easy, no-mess applications. Designed in a sleek, chic package for anytime use, you can use it after meals or in between meetings. Help freshen your breath while brightening your smile. Just brush onto teeth and go! Each pen lasts for up to three weeks and is enough for a full course of twice daily applications.