Wrinkles under the eyes are mainly caused by a mix of natural aging, sun damage, facial expressions, and lifestyle habits like smoking or poor skincare.

How wrinkles form

  • As skin ages, it loses collagen, elastin, and fat, so it becomes thinner, drier, and less elastic, making lines show more easily.
  • The under‑eye area is naturally very thin and delicate, so these changes show up there earlier than on many other parts of the face.

Main causes under the eyes

  • Aging: Natural loss of collagen and elasticity leads to fine lines that eventually deepen into wrinkles.
  • Sun/UV exposure: UV rays break down collagen and elastin, causing early lines, crepiness, and a leathery texture under the eyes.
  • Facial expressions: Repeated smiling, squinting, and frowning create “dynamic” wrinkles that can become permanent over time.

Lifestyle and habit factors

  • Smoking and pollution: Free‑radical damage and reduced blood flow from smoking accelerate collagen breakdown and under‑eye wrinkling.
  • Rubbing and bad sleep habits: Frequently rubbing your eyes or sleeping face‑down can crease and irritate the thin under‑eye skin.
  • Diet, alcohol, and dehydration: High sugar intake and heavy alcohol use promote free‑radical damage and dry out skin, making lines more visible.

Other contributors

  • Allergies and irritation: Allergies can cause swelling, inflammation, and constant rubbing, which encourage fine lines.
  • Genetics: Family history plays a role in how early and how strongly wrinkles and eye bags appear.

Quick takeaway

Under‑eye wrinkles are a normal sign of skin aging, but sun protection, gentle skincare, not smoking, and avoiding harsh rubbing can slow their development and make them less noticeable.

Information gathered from public forums or data available on the internet and portrayed here.