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

Single-use toner pads can add an extra element of exfoliation, and lots of current formulas include active ingredients that target dullness, breakouts, and hyperpigmentation. —Grace McCarty, Glamour, 12 Dec. 2025

Green light prevents hyperpigmentation from forming, per Czech. —Stacia Datskovska, Footwear News, 12 Dec. 2025

If hyperpigmentation or dark spots are top of mind, the Discoloration Duo is well worth adding to cart. —Conçetta Ciarlo, Vogue, 29 Nov. 2025

The products also reduce the appearance of hyperpigmentation and leave skin looking brighter and more even with each swipe. —Alicia Geigel, Southern Living, 27 Nov. 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