I've used about 4 of these and no progress. I took pictures of my teeth every time I used them and they just seemed to get yellower. I'm not sure if I did anything wrong but I should have gotten SOME results after using them for 30 minutes a day.
Custom-Fit Teeth Whitening Trays - Moldable, Hygienic, BPA-Free, Latex-Free, Dental π¦· Grade Guard - Set of 4 Mouth Trays for Comfortable Tooth Whitening
12 Review
Teeth Whitening Gel Refill Kit - 10 π¦· Tubes of 44% Carbamide Peroxide Formula by Bright White Smiles
11 Review
Crest whitening strips 3D White Professional Effects
12 Review
Krucasano Teeth Whitening Pen Kit (4 Pens) - Effective, Painless, and Non-Sensitive - Get π¦· a Beautiful White Smile with Natural Mint Flavor and Easy to Travel with Whitening Gel Pen!
12 Review
Wild Fuel Dental Probiotics: Fresh Breath & Healthy Bacteria Support - Vegan, Cruelty-Free Chewable Tablets for Oral Health - 45 Mint Flavored, Sugar-Free Travel Tin
14 Review
π¦· Colgate Max Fresh Whitening Toothpaste with Breath Strips, Clean Mint, Limited Edition - 6 Oz, 24 Ounce (Pack of 4)
10 Review
π TheraBreath Fresh Breath Chewing Gum: ZINC with Citrus Mint Flavor - Pack of 6 (10 Count)
11 Review
The Legend of Zelda: Breath of the Wild game for Nintendo Switch, cartridge
20 Review