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

This acid is a form of vitamin C that helps to brighten the skin, reduce hyperpigmentation, and boost collagen production. —Larry Stansbury, Essence, 14 Aug. 2024

Camouflage with makeup: Concealers and foundations can help cover up hyperpigmentation and boost self-confidence when visible hyperpigmentation is bothersome. —Lindsay Curtis, Verywell Health, 12 Sep. 2024

Seasonally dry skin with rosacea and slight hyperpigmentation. —Alyssa Brascia, Peoplemag, 10 Sep. 2024

Best for: The high-tech formulation can help decrease the appearance of sun spots and other forms of hyperpigmentation in as little as eight weeks—in addition to helping diminish fine lines and wrinkles in a month. —Jenny Berg, Vogue, 4 Sep. 2024

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