Question / Answer with the #1 Cosmetic Teeth Whitening Lounge in the San Francisco Bay Area! Smilelabs of Pleasanton How much is cosmetic teeth whitening? ( this is why we exist right here!) Its cost, on average, is $650, compared to $400 for take-home trays and under $100 for over-the-counter bleaching trays or strips. Results can be unpredictable, depending on factors such as age…