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 coupling is equally beneficial for concerns like hyperpigmentation, melasma, and sun damage. — Kelsey Stewart, Allure, 18 Aug. 2026

An InStyle editor with acne-prone skin relies on the foundation-concealer hybrid to cover her acne and hyperpigmentation. — Alyssa Morin, InStyle, 14 Aug. 2026

The licorice root extract helps with any inflammation and hyperpigmentation, and prickly pear extract to add more hydration and antioxidant protection. — Audrey Noble, Vogue, 10 Aug. 2026

Her doctor advised her to stop clinical hyperpigmentation treatments for her dark spots and uneven skin tone as some ingredients could be unsafe to use while trying to conceive or during pregnancy. — Kati Chitrakorn, CNN Money, 4 Aug. 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