If you rely on daily coffee or tea, you have likely noticed subtle yellowing...

https://technivorz.com/what-should-i-do-if-whitening-gel-irritates-my-gums-a-practical-guide/

If you rely on daily coffee or tea, you have likely noticed subtle yellowing over time. I spent months testing at-home whitening gels to find options that actually lift stains without compromising your enamel