{"id":4939,"date":"2025-10-06T15:15:24","date_gmt":"2025-10-06T15:15:24","guid":{"rendered":"https:\/\/www.isdin.com\/en-US\/blog\/?p=4939"},"modified":"2025-10-06T15:19:03","modified_gmt":"2025-10-06T15:19:03","slug":"what-is-photoaging-and-why-do-we-have-to-care-about-it","status":"publish","type":"post","link":"https:\/\/www.isdin.com\/us\/blog\/skincare\/what-is-photoaging-and-why-do-we-have-to-care-about-it\/","title":{"rendered":"What is Photoaging? Everything You Need to Know"},"content":{"rendered":"Reading:<\/span> 5<\/span> minutes<\/span><\/span>\n

Aging is something to take pride in\u2014after all, it\u2019s an adventure in personal growth that\u2019s all your own. But have you ever wondered why some people look older than their years, while others seem ageless? Beyond genetics, external factors play a major role in how our skin ages.<\/p>\n\n\n\n

One of the biggest culprits? Sun exposure<\/strong>\u2014responsible for up to 80% of visible skin aging. So how does that show up on your skin? We spoke with Chiyoung Kang Park, ISDIN Medical Marketing Specialist, to explore how every fine line tells the story of a life well-lived. And above all, how you can help protect your skin.<\/p>\n\n\n\n

Let\u2019s dive in.<\/p>\n\n\n\n

First, let\u2019s talk sunlight<\/h2>\n\n\n\n

The sun gives us warmth and light\u2014but it also emits energy in the form of solar radiation, which includes different types of rays across various wavelengths.<\/p>\n\n\n\n

You\u2019ve probably heard of the most well-known types: ultraviolet A (UVA) and ultraviolet B (UVB). But there are a few others that might not seem so familiar. All of these rays<\/a> are closely tied to the aging process of the skin, especially with prolonged exposure.<\/p>\n\n\n\n

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Expert Tip:<\/strong> Of all the external factors that impact our skin\u2014what we call the exposome\u2014sun exposure speeds up aging more than any other. Learn more from Dr. Susana Puig<\/a>.<\/p>\n\n\n\n

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Just what is photoaging?<\/h2>\n\n\n\n

Photoaging refers to skin aging caused by exposure to the sun. The prefix photo-<\/em> means \u201crelated to light,\u201d and in this case, we\u2019re talking specifically about sunlight and other types of solar rays that aren’t visible.<\/p>\n\n\n\n

Here\u2019s how Park puts it: \u201cPhotoaging is the process where solar radiation accelerates visible signs of skin aging, like sun spots and fine lines.\u201d<\/strong><\/p>\n\n\n\n

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\u201cPhotoaging is the process where solar radiation accelerates visible signs of skin aging, like sun spots and fine lines.\u201d<\/p>\n<\/blockquote>\n\n\n\n

Here\u2019s how it happens<\/h2>\n\n\n\n
\"photoaging<\/figure>\n\n\n\n

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Park shares that while UVA rays are the main contributors to photoaging<\/strong>, UVB, blue solar light, and infrared also play their part. And each type impacts the skin differently:<\/p>\n\n\n\n