The bleach seeps via your tooth enamel to whiten the dentin layer under. Dentin is naturally a darker yellow colour, And that's why our teeth aren't flawlessly white to begin with. Proprietary advanced teeth whitening method makes use of award-profitable LED activating engineering to supply Skilled final results for as http://gregoryouzek.tinyblogging.com/The-smart-Trick-of-Fast-Teeth-Whitening-That-No-One-is-Discussing-52968812