Many people don’t realize that the area of the face that shows aging most noticeably is not the bags under the eyes or the deep creases on the forehead, but rather the two lines next to the nose known as nasolabial folds （法令纹）.
The term nasolabial folds is used to describe these lines because they extend from the nose to the corners of the mouth. The prefix “naso-” relates to the nose, making nasolabial folds the most common term. Sometimes, they are also referred to as creases from nostrils to mouth, or more colloquially as smile lines or laugh lines, since these folds often deepen with frequent smiling or laughing.
So how do we say other types of wrinkles in English?
In general, wrinkles refers to all types of lines on the face and body. Smaller lines are called fine lines. Wrinkles caused by facial expressions are known as expression lines. Here are some common examples:
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Forehead wrinkles (抬头纹 / 川字纹) – also called worry lines
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Crow’s feet (鱼尾纹) – also known as fish tail lines
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Nasolabial folds (法令纹)
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Stretch marks (妊娠纹) – found on the body
All these fine lines and wrinkles are signs of aging left by time. In aesthetic medicine（医美）, various treatments are available to minimize or eliminate these signs—especially nasolabial folds, which greatly impact how aged the face appears.
To treat nasolabial folds, non-surgical procedures（非手术美容项目）are commonly used. In micro plastic injections（注射微整形）, a popular method is to use dermal fillers（玻尿酸填充）to fill the nasal base and smooth out any hollowness, thus softening the appearance of the folds.
For face rejuvenation（面部年轻化）, many also turn to non-invasive procedures（非侵入式治疗）with anti-aging（抗衰老）devices. These high-tech treatments lift and tighten the skin while regenerating collagen, offering comprehensive anti-aging and wrinkle-reducing effects. At Ai Beauty, two advanced devices used for improving nasolabial folds are the Thermage FLX（热玛吉）and the Merz Ultherapy（美版超声刀）, both of which are proven to significantly reduce the appearance of these deep facial lines.
