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
Anne WeintraubThe presence of nickel can cause a skin rash that leads to hyperpigmentation, or darkening, of the skin.—Jenyne M. Raines
Jenyne M. RainesExamples of hyperpigmentation in a Sentence
Recent Examples on the Web
The skin care pick is formulated with thiamidol, a key ingredient to help with hyperpigmentation and dark spots, plus it’s packed with hyaluronic acid to hydrate, plump, and smooth.
—Kyra Surgent, InStyle, 5 Mar. 2026
Fun pink-and-red dark spot stickers that erase hyperpigmentation and look good doing it; an innovative perfume milk launch that packs skin care and long-wear benefits; a genius frizzy hair product for taming flyways on gusty mornings; and so many more swoon-worthy staples.
—Grace McCarty, Glamour, 1 Mar. 2026
Plumbody, an ultra-hydrating body cream featuring a patented ingredient called Midnight Muir, which helps reduce redness, dryness and hyperpigmentation, while fighting free radicals and enhancing skin elasticity.
—Tory Johnson, ABC News, 24 Feb. 2026
Without proper protection, sun exposure can actually undo the benefits, leading to accelerated skin aging that shows up as sun spots, hyperpigmentation, sagging, or increased crepiness.
—Christa Joanna Lee, Allure, 5 Feb. 2026
See All Example Sentences for hyperpigmentation
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Kyra Surgent, InStyle, 5 Mar. 2026
Fun pink-and-red dark spot stickers that erase hyperpigmentation and look good doing it; an innovative perfume milk launch that packs skin care and long-wear benefits; a genius frizzy hair product for taming flyways on gusty mornings; and so many more swoon-worthy staples.
—Grace McCarty, Glamour, 1 Mar. 2026
Plumbody, an ultra-hydrating body cream featuring a patented ingredient called Midnight Muir, which helps reduce redness, dryness and hyperpigmentation, while fighting free radicals and enhancing skin elasticity.
—Tory Johnson, ABC News, 24 Feb. 2026
Without proper protection, sun exposure can actually undo the benefits, leading to accelerated skin aging that shows up as sun spots, hyperpigmentation, sagging, or increased crepiness.
—Christa Joanna Lee, Allure, 5 Feb. 2026
See All Example Sentences for hyperpigmentation
Cite this Entry
“Hyperpigmentation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hyperpigmentation. Accessed 6 Mar. 2026.
Copy CitationMedical 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.
Elizabeth A. Abel et al.Love words? Need even more definitions?
Merriam-Webster unabridged
