also: わらいじわ
noun
laugh line; smile line; nasolabial fold
Refers to the lines or wrinkles that appear around the mouth or eyes when smiling or laughing. Often used in beauty or skincare contexts. Compare with ほうれい線 (nasolabial fold), which is more anatomical.
See also: ほうれい線 (ほうれいせん)
最近、笑いジワが気になってきた。
Lately, I've become concerned about my laugh lines.
笑いジワを予防
To prevent smile lines, I make sure to moisturize well.
ほうれい線 specifically refers to the nasolabial folds running from the nose to the corners of the mouth, while 笑いジワ is a more general term for wrinkles caused by smiling or laughing, often with a less clinical nuance.
Compound of 笑い (warai, 'laughing') and 皺 (shiwa, 'wrinkle'), with the latter often written in katakana as ジワ for emphasis or ease of reading.