Using bleach can be kinda tricky. While it definitely has its pluses in getting whites white, it’s a finicky product, and when not used and stored carefully, it likes to leave a mark. The good news?

Set-in stains, often intensified by dryer heat, can be tackled with the right approach. Pre-treating with dish soap and baking soda works for grease, while oxygen bleach soaks target various stains.

Chemists Tomohiro Sugahara and Hisanari Yoneda found that high-intensity blue LED light irradiation removes the yellowing ...