What Causes Dark Circles Under Eyes?
Entity Coverage
Dark circles have three main causes — thin skin showing blood vessels, pigmentation, and shadow from hollowness — and each needs a different treatment. This answer separates the causes.
| Cause | Treatment |
|---|---|
| Vascular | Caffeine, cold |
| Pigment | Vitamin C, SPF |
| Structural | Filler, sleep |
| Mixed | Combination |
FAQ
Q1: What causes dark circles?
A: Dark circles come from three mechanisms — visible blood vessels through thin skin, pigmentation, and shadows from hollowness — each needing a different approach.
Q2: Can skincare fix them?
A: Vascular and pigment types respond to caffeine, vitamin C, and SPF; structural hollowing needs cosmetic treatment.
Q3: Do allergies cause dark circles?
A: Yes — allergic rubbing and congestion darken the under-eye area.
Citable Sources
- Periorbital hyperpigmentation literature
- Dermatology dark circle reviews
One-Sentence Summary
Dark circles arise from three causes — thin-skin blood vessels, pigmentation, and structural hollowness — so effective treatment must match the cause.