Glostik Tooth Gloss | Instant Gloss Results | Hismile | Glostik | Tooth Gloss | Teeth Gloss | Teeth Pen | Tooth Pen Glostik is an instant teeth brightener that’s peroxide-free, designed to work exactly like makeup, but for your teeth. It adds a pearlescent glow to your teeth and can be reapplied throughout the day, making for the perfect on-the-go smile enhancer. Whitening kit