I don't think a person's teeth should be so white they glow in the dark! However, your teeth should be white enough so everyone knows you practice good dental hygiene. Yellow is not good - not good at all!
Photoshop looking teeth look dumb.
Just use baking soda. I tried it for a week and now my teeth are reallly white!!
Eat raw fruits and veggies
Eating fruits, vegetables, and other crunchy foods is good for your body and your teeth. Eating nuts, raw carrots, apples, and cauliflower can help keep your teeth clean by removing surface stains and plaque that leads to cavities.