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
Hale's skin journey goes beyond hyperpigmentation and breakouts.
—Catherine Santino, People.com, 21 Apr. 2025
The Laser Pro uses near-infrared cold laser technology to boost collagen production to address wrinkles, cellulite, redness, scarring, hyperpigmentation, and post-surgical recovery.
—Julian Chokkattu, Wired News, 19 Apr. 2025
And all of our experts stress the importance of using sunscreen to prevent hyperpigmentation.
—Essence Gant, Allure, 16 Apr. 2025
These nourishing skin care products target multiple signs of maturity: thin and crepey skin, fine lines and wrinkles, and hyperpigmentation like sun spots.
—Brigitt Earley, Glamour, 31 Mar. 2025
See All Example Sentences for hyperpigmentation
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Catherine Santino, People.com, 21 Apr. 2025
The Laser Pro uses near-infrared cold laser technology to boost collagen production to address wrinkles, cellulite, redness, scarring, hyperpigmentation, and post-surgical recovery.
—Julian Chokkattu, Wired News, 19 Apr. 2025
And all of our experts stress the importance of using sunscreen to prevent hyperpigmentation.
—Essence Gant, Allure, 16 Apr. 2025
These nourishing skin care products target multiple signs of maturity: thin and crepey skin, fine lines and wrinkles, and hyperpigmentation like sun spots.
—Brigitt Earley, Glamour, 31 Mar. 2025
See All Example Sentences for hyperpigmentation
Cite this Entry
“Hyperpigmentation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hyperpigmentation. Accessed 26 Apr. 2025.
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
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