Is it okay to use 3D White Whitestrips kits back to back? Or to use an intensive kit and then Stain Shield right after?
• Yes. With Crest 3D White Whitestrips, you can use one strip right after the other (back-to-back). Wear strips for the time instructed, then remove; rinse or wipe if needed, then apply a second strip. To maintain your whiter smile use up to two Crest 3D White Whitestrips teeth whitening systems per year; or try Crest 3D White Whitestrips Stain Shield. These 5-minute once a day strips whiten and help protect your smile against staining. If you feel you need to whiten more frequently, we suggest you speak with your dental professional about professional-strength Crest Whitestrips Supreme.