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

https://www.bookmark-help.win/does-your-daily-tea-habit-leave-your-smile-looking-dull-i-ve-tested-the-latest

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