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

The result is a suppleness-restoring, hyperpigmentation-fading, fine line-plumping serum with hundreds of five-star ratings. — Tamim Alnuweiri, InStyle, 29 July 2026

Green light has a shorter wavelength than red light, targeting skin concerns in the superficial layers, such as hyperpigmentation (dark spots) and inflammation. — Sarah Bence, Verywell Health, 29 July 2026

Avoid picking at or popping blemishes, as this could increase your risk of infection, scarring, and hyperpigmentation. — Sherri Gordon, Health, 28 July 2026

As someone with brown skin, Desai also wanted formulas that addressed concerns often overlooked by the beauty industry, particularly hyperpigmentation. — Tiana Randall, Forbes.com, 28 July 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