Sichuan character lines, also known as frown lines, are vertical wrinkles located between the eyebrows. They are common in people who often frown or close their eyes hard. Their formation is mainly related to long-term muscle contraction and expression habits.
Sichuan lines are not just simple wrinkles, but also aging signals from the body. Many people are keen to find various ways to eliminate Sichuan lines, but are these methods really effective...