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

Meanwhile, Korean sunscreens use a second system that measures a product’s ability to defend against UVA rays (the type of sun rays that accelerate signs of aging, including hyperpigmentation, textural changes, and fine lines). —Adam Hurly, Robb Report, 22 Apr. 2024

Any skin type, tone, or texture could benefit from a CC cream, however, those looking to address hyperpigmentation, acne-scarring, or rosacea flareups might find these more suitable than other coverage solutions. —Kylee McGuigan, Vogue, 17 Apr. 2024

The minimally invasive treatment is used to stimulate collagen-producing cells, which can help minimize pores, hyperpigmentation, and sagging skin. —India Espy-Jones, Essence, 3 Apr. 2024

This lightweight serum packs a powerhouse of ingredients—from peptides to vitamin C, plus antioxidants for a product that works on wrinkles, hyperpigmentation, and even scars. —Glamour, 1 Mar. 2024

Tretinoin for sun damage and signs of aging Over time, the sun’s UV rays cause signs of aging, including hyperpigmentation. —Krissy Brady, SELF, 2 Apr. 2024

This serum, which targets hyperpigmentation, is an undisputed standout. —Perrie Samotin, Glamour, 29 Mar. 2024

This formula features glycolic acid for sloughing off dead skin cells and improving hyperpigmentation. —Jessie Quinn, Peoplemag, 25 Mar. 2024

Both types of ingredients are intended to address issues like hyperpigmentation, wrinkles or acne, according to Dr. Jayden Galamgam, a dermatologist at UCLA Health. —Katie Mogg, NBC News, 29 Feb. 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