Love your daily coffee but dislike the stains? Whitening gels require patience...

https://chancevwpt210.wpsuo.com/beyond-the-filter-why-your-whitening-gel-is-stalling-and-how-to-fix-it

Love your daily coffee but dislike the stains? Whitening gels require patience and consistency to work well. I’ve tested the latest at-home kits to find formulas that lift discolouration gradually while respecting your enamel and preventing sensitivity