Instant Whitening Teeth Naturally Easy Application, No Mess Instant Results No Sensitivity Will this work on my coffee /wine /smoking stains? Yes. These strips are built to tackle stubborn, set-inlifestyle stains. The active ingredients gentlypenetrate the enamel to break down and liftdiscoloration from coffee, tea, red wine, andsmoking, revealing the brighter, natural smileunderneath. How To Use Open & peel. Tear open the foil pouch and lift thestrip off its backing with dry fingers. Place & wait. Press the gel side against your teeth,line the edge up just below your gums, and smoothit down so it grips. Peel & rinse. Take the strip off, bin it, and swishwater to clear any leftover gel. Done. How soon willI see results? You will see a noticeably brighter smile the momentyou remove the very first strip.