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 hybrid formula is powered by mineral filter zinc oxide and two chemical sunscreen ingredients, while vitamin E provides additional protection against free radicals, which contribute to signs of aging, hyperpigmentation, and skin cancer. — Sara Coughlin, Allure, 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

Today’s formulas also address redness, dehydration, hyperpigmentation and environmental stressors. — Kate Donnelly, Forbes.com, 23 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