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 instructed time, 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 Classic Vivid. These 30-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.