I have never tried to whiten my teeth before. They are not horribly stained, just a little yellow. I want something that is easy to use but effective. Any suggestions? I don’t know if strips or tray or those rub on gels are best

I have nice teeth they are straight and they are white, naturally but I see the celebrities and they’re teeth look so incredible…I’d like whiter teeth…should I get em professionally whitened, or should I just get a drugstore product? What works more? Also, how long does it last? Both ways…and I live in los angeles…can anyone help me with where I should go for great results if I should get profesional whitening, and if I should just buy a at home bleaching kit…which 1 is best? Please helpome bleaching kit, which 1?