Does Teeth Whitening Hurt?

Hi, My sister got her teeth whitened and her smile looks great. I told her I was thinking of doing myself. She said I need to be aware that it really hurts. She’s kind of a baby with pain and has a very low pain tolerance, If you are looking for teeth whitening then surely visit them online at Dentistry by Design by clicking on https://www.hinsdalefamilydentist.com/teeth-whitening