Whitening Science
How whitening ingredients interact with tooth structure, what the published research does and does not show, and how to read claims about whitening critically.
Whitening science
Why whitening makes teeth hurt — and what actually helps
Sensitivity is the main reason people abandon a whitening round. The mechanism is better understood than most product copy admits, and several of the standard fixes are weaker than they are sold as.
6 min read
Whitening science
Why the light is two colors
Two wavelengths and a ten-minute session. The short session is doing more work than either light — here is what each part is actually for, including where the evidence does not support what this category usually claims.
7 min read