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

Treating hyperpigmentation with cosmetics is not easy but not impossible. —Vicky Vera, Glamour, 23 Jan. 2025

Treating hyperpigmentation in the armpits involves addressing any potential underlying conditions. —Heather Jones, Verywell Health, 23 Jan. 2025

With consistent use, your skin will appear less stressed, feel noticeably softer, and show a reduction in hyperpigmentation for a more even-toned, refreshed look. —Christa Joanna Lee, Allure, 17 Jan. 2025

While my other products are working their magic to keep my skin balanced, this CC cream provides extra hydration, sun protection, and cover for all the hyperpigmentation left behind from previous breakouts. —Shalwah Evans, People.com, 5 Jan. 2025

Word History

First Known Use

1866, in the meaning defined above

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