If you choose to purchase teeth whitening products at your local pharmacy or online, it’s important to look for the ADA Seal of Acceptance. This means that the product meets the American Dental Association’s criteria for safety and efficacy. Unfortunately, there has been a proliferation of questionable whitening products sold online and promoted by influencers; these products are often ineffective and sometimes they even cause damage to tooth enamel with abrasive ingredients like charcoal, acids, and clay. Steer clear of anything that doesn’t have the ADA seal.