Sunscreen mistakes can leave skin darker and make age spots more visible even when you think you are protected, dermatologists and public health groups warn.
The American Academy of Dermatology and the Skin Cancer Foundation note that sunscreen provides time limited protection, and incorrect habits can undo product benefits. Below are common errors and clear steps to improve daily sun protection.
Sunscreen mistakes: assuming a hat or mask is enough
Wearing a face mask or a baseball cap does help, but it does not replace sunscreen. The American Academy of Dermatology says fabric masks and surgical masks do not reliably block ultraviolet rays, and hat brims only shade part of the face.
For broader protection, experts recommend pairing sun protective clothing with a broad spectrum sunscreen that covers both UVA and UVB. Choose a broad spectrum product and apply it to exposed skin even when you are wearing a mask or hat.
Sunscreen mistakes: applying only before you go outside
Many people apply sunscreen once before leaving home and then assume they remain protected all day. The Skin Cancer Foundation and the American Academy of Dermatology recommend reapplying sunscreen on a schedule.
Reapply every two hours, and reapply more often after swimming or heavy sweating, the Skin Cancer Foundation says. For outdoor activities and water sports, increase the frequency of reapplication to maintain protection.
Sunscreen mistakes: using too little or the wrong technique
Sunscreen works as a protective film, so it must cover skin evenly and in sufficient quantity to be effective. The American Academy of Dermatology recommends generous application for full coverage.
Use a generous amount and spread sunscreen in one direction rather than rubbing in tight circles, formulators at several skincare companies said, speaking on condition of anonymity to describe product testing methods. That avoids clumping and reduces visible flaking.
On the face, apply enough to cover all exposed areas, including the ears, hairline, and the area under a mask edge. For the body, apply until skin has an even, thin film and reapply as directed.
Correcting these common sunscreen mistakes can improve protection and help slow the appearance of dark spots over time, the Skin Cancer Foundation says. Combine sunscreen with shade, sun protective clothing, and scheduled reapplication for best results.
