Efferdent Overnight For a confident smile, make sure you soak with Efferdent Dental Appliance Cleanser.®Now in Overnight Whitening Learn More Efferdent Mint For fresh breath everyday, make sure you soak with Efferdent Dental Appliance Cleanser Learn More Efferdent Overnight Efferdent® PM Overnight Dental Appliance Cleanser Tablets offer a great way to kill 99.9% of odor-causing bacteria that cause denture odor while also dissolving tough stains. Where to Buy Efferdent® products are available over-the-counter at drug, grocery, and mass retailers nationwide Effergrip® Secure Denture Adhesive Effergrip® Denture Adhesive is an extra strong adhesive for a powerful grip. Unlike some other denture adhesives, it does not contain zinc.