hyperpigmentation

noun

hy·​per·​pig·​men·​ta·​tion ˌhī-pər-ˌpig-mən-ˈtā-shən 

-ˌmen-

: excess pigmentation in a bodily part or tissue (such as the skin)

Vitamin C has been reported to inhibit the production of melanin, the stuff that produces not only a tan but also freckles and hyperpigmentation.

—Anne Weintraub

The presence of nickel can cause a skin rash that leads to hyperpigmentation, or darkening, of the skin.

—Jenyne M. Raines

hyperpigmented

ˌhī-pər-ˈpig-mən-təd 

-ˌmen-

adjective

hyperpigmented skin

Examples of hyperpigmentation in a Sentence

Recent Examples on the Web

For those dealing with hyperpigmentation, consider tinted sunscreens that contain iron oxides, which help protect against visible light in addition to UV rays. — Catharine Malzahn, Allure, 13 July 2026

Even short periods of UV exposure can contribute to cumulative skin damage over time, increasing the risk of premature aging, hyperpigmentation, and skin cancer, Kormeili added. — Kathleen Ferraro, Verywell Health, 9 July 2026

The transparent, cooling, jelly-like formula features niacinamide, a form of vitamin B that smooths uneven texture and fades hyperpigmentation. — Sophie Wirt, InStyle, 1 July 2026

These products can address wrinkles, hyperpigmentation and volume loss in a way hypochlorous acid simply can’t. — Maggie Ryan, Flow Space, 26 June 2026

Word History

First Known Use

1866, in the meaning defined above

Rhymes for hyperpigmentation

• acclimatisation
• acclimatization
• acidification
• actualization
• annualization
• autocorrelation
• autoregulation
• beatification
• beneficiation
• biodegradation
• biotransformation
• bureaucratization

Medical Definition

hyperpigmentation

noun

hy·​per·​pig·​men·​ta·​tion -ˌpig-mən-ˈtā-shən, -ˌmen- 

: excess pigmentation in a body part or tissue (as the skin)

hyperpigmentation of deep inflammatory acne lesions

—Elizabeth A. Abel et al.

hyperpigmented

-ˈpig-mənt-əd, -ˌment- 

adjective

hyperpigmented skin