Hyperpigmentation (Term)

Hyperpigmentation (Term) — the general term for areas of skin that appear darker than the surrounding tone because of excess melanin, the pigment that gives skin its color. It can show up as spots, patches, or broader discoloration and has many possible triggers, from sun exposure to inflammation and hormonal changes.

Key points

• Hyperpigmentation results from overproduction or uneven distribution of melanin in the skin.
• Common types include sun-related spots, post-inflammatory marks, and melasma.
• Sun exposure is a major contributor and can darken existing pigmentation.
• Post-inflammatory hyperpigmentation often follows acne, injury, or irritation.
• Consistent sun protection is widely recommended to help prevent pigmentation from worsening.

Frequently asked

What causes hyperpigmentation?

It is caused by excess melanin production, which can be triggered by sun exposure, inflammation such as acne, hormonal shifts, or skin injury.

Is hyperpigmentation permanent?

Many forms fade gradually over time or with targeted care and sun protection, but outcomes vary, and persistent discoloration is best evaluated by a dermatologist.

Related topics

• What Is a Humectant?
• What Is the Skin Barrier?
• Retinaldehyde (Term)
• Reef-Safe (Term)
• Post-Inflammatory Hyperpigmentation (PIH)
• Physical Exfoliation (Term)
• Oxidative Stress (Term)
• Melanin (Term)

This is a foundational entry in the SYNC Skin Encyclopedia and is expanded over time. Educational information only — not medical advice.