After testing many gels, I know safe whitening is a marathon, not a sprint. If...

https://www.golf-bookmarks.win/love-your-coffee-but-hate-the-stains-i-ve-tested-at-home-whitening-gels-to-see

After testing many gels, I know safe whitening is a marathon, not a sprint. If daily tea or coffee has dulled your smile, you need formulas that respect your enamel. I’ve spent weeks trialling kits to see what actually works without causing sensitivity