Can semen make your teeth white?

Chemistry Not There. A dentist thorough cleaning and then a whitening procedure will generally get your best results of taking out whatever yellowing that is not normal to your particular deeper tooth structure.
Not really. If you want to lighten your teeth you can try an over the counter treatment like crest white strips or see a dentist for professional whitening.
Not likely. You need to try an otc whitening product or go the dentist for many other whitening options!