Efficacy of Teeth Whitening Product Offerings in Adults

Inclusion Criteria: * Provide written informed consent to participate in the study. * Be 18 to 65 years of age. * Agree not to participate in any other oral/dental product studies during the trial. * Agree to delay any elective dentistry (including dental prophylaxis) until the study has been completed. * Agree to refrain from the use of any other teeth whitening products once assigned to a treatment group. * Agree to refrain from the use of any oral care products that may cause staining (chlorhexidine rinses, stannous fluoride toothpaste, etc.). * Agree to return for all scheduled visits and follow study procedures. * Be in good general health, as determined by the investigator/designee based on a review of the health history/update for participation in the study. * Have at least 4 gradable maxillary anterior teeth ( canine to canine) with a Vita Shade average score of C2 or darker. * Be willing to refrain from consuming stain-causing food and beverages (i.e., coffee, tea, red wine, berries, etc.) during the initial treatment duration (treatment period excluding the 4 week follow up). * Be a current or recent non-smoker (no smoking for at least 3 months). Exclusion Criteria: * Are undergoing treatment for gingivitis, periodontitis, or caries. * Presence of self-reported tooth sensitivity. * Present with fixed orthodontic appliances on the facial surfaces of the maxillary arch. * Have dental crowns, veneers or composite restorations on gradable maxillary anterior teeth ( canine to canine) or mandibular anterior teeth. * Have any oral pathologies or gross neglect of home care requiring prompt treatment, including periodontal disease, as evidenced by purulent exudate, exposed root surfaces (generalized recession), tooth mobility, and/or other signs indicating that the integrity of the data collected for that subject might be compromised. * Present with any pre-existing oral or medical condition that the Investigator/designee determines may place the subject at increased health risk from study participation. * Have meaningful malocclusion that would impact treatment or ease of viewing/scoring maxillary anterior teeth. * Have teeth with severe or atypical intrinsic staining, such as that caused by tetracycline, fluorosis or hypocalcification. * Have any known allergies to over-the-counter oral hygiene/whitening products. * Have any known allergies to the trial product ingredients. * Are pregnant and/or breastfeeding. * Are current smokers.