Overview

• Apply sunscreen 20 to 30 minutes before sun exposure to ensure UV filters form an effective protective film
• Reapply every two to three hours and after swimming or sweating to maintain the advertised level of protection
• Opt for mineral filters such as zinc oxide and titanium dioxide to avoid hormone-disrupting chemicals and reduce environmental harm
• Use sunscreen even on cloudy days and in the shade because UV rays can penetrate clouds and reflect off surfaces
• Store unopened sunscreens in cool, dark conditions and discard opened products after 12 months to prevent ingredient degradation and harmful byproducts