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

Studies show that the key ingredient, Bakuchiol, a vegan retinol, is gentle enough for the eye area while also reducing wrinkles and hyperpigmentation. —Rosa Jisoo Pyo, Vogue, 28 Mar. 2025

Serums and moisturizers formulated with niacinamide can address a range of common skin concerns, from hyperpigmentation to pore size. —Caroline C. Boyle, USA Today, 27 Mar. 2025

Getting rid of pesky age spots, sun damage, and other hyperpigmentation on the complexion is tricky and can require expensive treatments such as IPL lasers. —Jessie Quinn, StyleCaster, 25 Mar. 2025

Elsewhere, green and near-infrared targets the eye area to fade hyperpigmentation, dark circles and eye bags, and yellow focuses on the most spot-prone areas of the face to help reduce facial redness. —Sophie Cockett, Glamour, 13 Feb. 2025

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