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
This balm-to-powder foundation instantly blurs blemishes and hyperpigmentation while smoothing skin texture for an even finish.
—Sarah Han, Allure, 5 Sep. 2024
Examples include exfoliating acids (beneficial for unclogging pores and fading hyperpigmentation), hyaluronic acid (for hydration) and vitamin C (which brightens and protects skin against environmental aggressors like pollution).
—Jacqueline Kilikita, refinery29.com, 18 June 2024
Some research suggests the blue light that’s emitted from our screens can cause hyperpigmentation of the skin.
—Jamie Friedlander Serrano, TIME, 13 Aug. 2024
It’s known to even skin tone by improving dark spots and hyperpigmentation over time.
—Devon Abelman, Allure, 5 Aug. 2024
See all Example Sentences for hyperpigmentation 
Sarah Han, Allure, 5 Sep. 2024
Examples include exfoliating acids (beneficial for unclogging pores and fading hyperpigmentation), hyaluronic acid (for hydration) and vitamin C (which brightens and protects skin against environmental aggressors like pollution).
—Jacqueline Kilikita, refinery29.com, 18 June 2024
Some research suggests the blue light that’s emitted from our screens can cause hyperpigmentation of the skin.
—Jamie Friedlander Serrano, TIME, 13 Aug. 2024
It’s known to even skin tone by improving dark spots and hyperpigmentation over time.
—Devon Abelman, Allure, 5 Aug. 2024
See all Example Sentences for hyperpigmentation
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'hyperpigmentation.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near hyperpigmentation
Cite this Entry
“Hyperpigmentation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hyperpigmentation. Accessed 17 Sep. 2024.
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?
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