Coffee and tea dull your smile, but whitening shouldn't hurt. I’ve tested...

https://parlorbeauty.co.uk/at-home-uk-teeth-whitening-gels-do-they-actually-work/

Coffee and tea dull your smile, but whitening shouldn't hurt. I’ve tested at-home gels to find what actually works. My guide covers consistency, gradual brightening, and enamel safety. Learn to manage sensitivity and get natural results for your routine.