{"pageUrl":"https://www.comparethespecs.com/beauty-wellness-grooming/dental-care/which-teeth-whitening-kit-has-the-longest-lasting-results","lastUpdated":"2026-09-13","totalProducts":2,"niche":"Which teeth whitening kit has the longest lasting results?","description":"Which teeth whitening kit has the longest lasting results?","products":[{"brand":"Smile Brilliant","model":"Smile Brilliant Teeth Whitening Trays","price_gbp":117.44,"origin_country":null,"specs":{"activation_time":"45 minutes daily","included_accessories":"Custom-fitted upper and lower trays, impression kit, whitening gel syringes, storage case, prepaid return envelope","number_of_treatments":"9 to 27","whitening_percentage":"22% carbamide peroxide"},"confidence_score":null,"sources":[{"label":"Smile Brilliant","url":"https://www.smilebrilliant.com/product/teeth-whitening-trays/","currency":"USD","source_country":"US","price":159.0,"price_gbp":117.44,"scraped_at":"2026-09-09T11:07:36.244683"}],"summary":"Smile Brilliant Teeth Whitening Trays use 22% carbamide peroxide gel with custom-fitted trays made from at-home dental impressions. The reusable system suits people seeking professional-style whitening, including users who want standard or sensitive-teeth options and customizable treatment lengths.","ideal_for":"This kit suits people seeking the longest lasting results because its reusable custom-fitted trays provide even coverage and can be maintained with additional gel treatments over time."},{"brand":"Laughland","model":"Laughland Whitening Kit","price_gbp":48.01,"origin_country":null,"specs":{"activation_time":"5-30 minutes","included_accessories":"LED mouthpiece, 3 whitening gel syringes, power adaptor","number_of_treatments":"6","whitening_percentage":"8% hydrogen peroxide"},"confidence_score":null,"sources":[{"label":"Laughland","url":"https://www.mylaughland.com/products/at-home-whitening-kit","currency":"USD","source_country":"US","price":65.0,"price_gbp":48.01,"scraped_at":"2026-09-09T11:07:36.244683"},{"label":"Laughland","url":"https://www.mylaughland.com/products/starter-whitening-kit-6-treatments-free-pen","currency":"USD","source_country":"US","price":null,"price_gbp":null,"scraped_at":"2026-09-09T11:07:36.244683"}],"summary":"The Laughland Whitening Kit combines personalized hydrogen peroxide gel with a phone-powered LED mouthpiece. It is designed for six daily treatments and suits people seeking portable, quick at-home whitening, including users concerned about sensitivity.","ideal_for":"It may suit someone seeking longer-lasting results because the kit uses a six-treatment cycle, includes enamel-hydrating ingredients, and the brand reports results lasting beyond the initial treatment cycle."}]}