WhiteFoam On-the-Go Clear Retainer Cleaner for Invisalign, Dentures, ClearCorrect, Essix, Vivera & Hawley Trays/Aligners Cleans Aligners Kills Bacteria Whitens Teeth Fights Bad Breath EverSmile WhiteFoam is an oral care breakthrough for cleaning clear aligners and clear retainers. WhiteFoam is worn throughout the day and works by using hydrogen peroxide to not only clean and kill odor-causing bacteria but also to whiten teeth under and over attachments. Ideal for patients with aligner funk arising from wearing aligners 22 hours per day that also want whiter teeth. The only patented, wearable aligner cleaner that cleans under aligner buttons & attachments, cleans clear hard retainers Without WhiteFoam - Dirty Aligners Patients undergoing orthodontic treatment with clear aligners change their trays every one to two weeks.