Delicate teeth? Start with low-peroxide gels, reduce sessions
https://privatebin.net/?8e859cbd136473db#9h2y4iVkbzJKsMEFo3Wv9KQQCK9vxMX2vRcR9N3N8HLX
Sensitive teeth? Start with low-peroxide gels, shorten sessions, and pre-treat with desensitizing tooth paste for 2 weeks before starting whitening.