sunscreen

The Truth About ‘Once-a-Day’ Sunscreens: Do They Really Last All Day? Reapplying sunscreen is a hassle many vacationers dread, leading some to opt for “once-a-day” formulas. But do these products truly offer lasting protection? Experts from consumer group Which? say no—and their investigation reveals crucial caveats hidden in the fine print. Key Problems with ‘All-Day’ […]