{"id":15950,"date":"2026-11-09T11:54:49","date_gmt":"2026-11-09T11:54:49","guid":{"rendered":"https:\/\/skinexpert.sesderma.com\/mejorar-apariencia-arrugas-expresion\/"},"modified":"2026-11-09T12:04:37","modified_gmt":"2026-11-09T12:04:37","slug":"improve-appearance-wrinkles-facial-expressions","status":"publish","type":"post","link":"https:\/\/skinexpert.sesderma.com\/en\/improve-appearance-wrinkles-facial-expressions\/","title":{"rendered":"Expression lines: why they form and how to improve their appearance"},"content":{"rendered":"

Expression lines can be one of the most common concerns<\/strong>: they form when you smile, frown, or raise your eyebrows. Understanding why they appear helps you choose the right way to address them in your daily routine.<\/p>\n

Here are the keys to understanding them and learning how to improve the appearance of expression lines<\/strong>.<\/p>\n

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What are expression lines?<\/h2>\n

Expression lines, also known as dynamic wrinkles, are the lines that appear when you make facial expressions<\/strong>. Every time you contract your facial muscles, the skin folds. When the skin is young and elastic, it returns to its original shape; over time, however, and with repeated facial movements, that fold begins to become permanently etched into the skin.<\/p>\n

They are usually found on the forehead, between the eyebrows, and in the crow\u2019s feet area<\/strong>. At first, they are dynamic\u2014that is, they are only visible when you make facial expressions. Over time, some may become deeper and remain visible even when the face is at rest, leading to permanent wrinkles.<\/p>\n

Why do expression lines appear?<\/h2>\n

The root cause lies in the repeated movement of facial muscles, but it is not the only factor. Over the years, the skin produces less collagen and elastin, loses its ability to return to its original state after each facial expression, and the lines become more deeply etched.<\/strong><\/p>\n

In addition, there are factors that can accelerate the process, such as sun exposure, dehydration, smoking, stress, or lack of rest<\/strong>. Genetics and each person\u2019s own expressiveness can also play a role.<\/p>\n

How can you improve expression lines?<\/h2>\n

Although expression lines are caused by repeated facial movements, their appearance also depends on the skin\u2019s elasticity, firmness, and hydration levels<\/strong>. That\u2019s why skincare can help address them on several fronts: preventing expression lines, smoothing out existing wrinkles, and improving the skin\u2019s quality and elasticity.<\/p>\n

To do this, there are key active ingredients that work together and that you can incorporate into your skincare routine:<\/p>\n