Newsdelivers.com –
Sunscreen is an important part of every skincare routine because it helps protect the skin from the damaging effects of the sun’s ultraviolet (UV) rays. However, many people still wonder, is it necessary to reapply or reapply sunscreen?
UV radiation from the sun is known to cause skin cancer, and can also cause premature aging of the skin. Sunscreen works to block this radiation and protect the skin from its dangers.
However, its effectiveness can decrease over time. Reapplying sunscreen every few hours is recommended to help ensure the skin is consistently protected from UV rays.
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This step is also supported by the Aesthetic Doctor from the Newsdelivers.com Dermalogia Clinic, Arini Astasari Widodo. He said that sunscreen should not only be used once a day, it should be repeated every 2-3 hours every day.
“You really have to reapply. If you are not doing heavy activity, at least two or three times an hour you have to reapply. “But if you’re sweating a lot or swimming, you have to use it more often,” said Arini, quoted from the CNN Indonesia page, Monday (22/1/2024).
Arini also said that the importance of reapplying sunscreen every 2-3 hours is not without reason. This is based on the properties of sunscreen ingredients and their interactions with various environmental factors.
Sunscreen is known to contain active ingredients that form a barrier and protect the skin against UV radiation. Over time, these ingredients can break down when exposed to sunlight, which of course can reduce the effectiveness of sunscreen.
“Reapplying every two hours helps repair and strengthen this barrier, ensuring continued protection,” he says.
In addition, several environmental factors also play a role in reducing this effectiveness. This includes sweating, swimming, and drying the body with a towel can also affect the integrity of the sunscreen layer.
Some of these activities can shift or dissolve sunscreen. Therefore, when you sweat a lot, you should apply sunscreen more often, even less than every two hours. Because, reapplying regularly can protect the skin from exposure to UV rays.
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(asa)