What is a good way in addition brushing to make teeth whiter?

Question

I brush my teeth twice per day but they don't appear white. They rather appear yellowish. I think it is related to my anemia (not sure). Is there a good way to keep teeth white in addition to brushing?

Thank you

Answer 1

Use mouthwash that can withens your teeth.

You can also use whitening strips.

Answer 2

Use hydrogen peroxide every two days or so.  Put some in your mouth, just a little sip, and swish it around for about 5 minutes.  Then spit most of it out and brush with what's left.

Don't use it every day because it can ruin your teeth if you use it too much.