Your sunscreen may not be as protective as you think

Wednesday, July 25, 2018 (HealthDay News) – Many people apply sunscreen too thin, and this could mean far less sunscreen than they hoped, new research shows.

So, it might be a good idea to use sunscreens with a higher sun protection factor (SPF), British researchers have advised: "What this research shows is that the way that sunscreen is applied plays an important role in determining its effectiveness ". author of the Antony Young study from King's College of London

In his study, Young's team evaluated DNA-damaged skin samples from 16 people at the clear skin that used different amounts of sunscreen. Skin samples have been exposed to ultraviolet (UV) light levels similar to those that occur during a day in the sun or during a long beach vacation.

The study showed that fewer people than the coverage recommended by manufacturers to determine their SPF index – provided only a maximum of 40 percent of the expected protection from the sun's harmful rays.

Research has shown that even in thinner applications, sunscreen prevents at least some damage to exposed skin. However, "Since most people do not use sunscreens tested by manufacturers, it is best that people use a much higher SPF than they use." "An American dermatologist said the results are in line with the advice he gives to his patients."

"Dermatologists generally teach patients that they should use sunscreens with SPF 30 and higher, because if they use a SPF 15 on vacation, they will likely only get it. one-third to one-half of the SPF protection indicated on the label, "said Dr. Scott Flugman.He is a dermatologist at Huntington Hospital of Northwell Health in Huntington, NY

. 39; it is applied more finely than recommended, the high-protection sunscreen offers significant protection against damage to the DNA, even if this sunscreen is less protective. "He said.

Dr. Michele Green practices dermatology at Lenox Hill Hospital in New York. She recommends that people "reapply sunscreen every two hours if you are outside." Also, if your skin is prone to skin cancer, you should wear a 50+ SPF and protective clothing.

she added. "There is an abundance of sunscreen clothing on the market that will provide additional protection against the sun's harmful rays," Green said. "It also helps because most people only apply sunscreen on their face and do not spend the time to apply on their body too."

The study was published July 25 in the newspaper Acta DV . 19659002] More info

The American Academy of Dermatology has more on sunscreen.