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 dermatologist recommends using sunscreen to address any hyperpigmentation.
—Larry Stansbury, Essence, 14 Aug. 2024
And for those looking to treat acne scars and hyperpigmentation, start with these treatments.
—Elizabeth Robinson, NBC News, 9 Aug. 2024
Unfortunately, the sun’s UVA and UVB rays can not only cause sunburn but also lead to premature signs of skin aging—namely, wrinkles and hyperpigmentation—and even skin cancer.
—Brigitt Earley, Glamour, 8 Aug. 2024
There’s also vitamin C, which works behind the scenes to reduce hyperpigmentation.
—Venus Wong, refinery29.com, 2 Aug. 2024
See all Example Sentences for hyperpigmentation 
Larry Stansbury, Essence, 14 Aug. 2024
And for those looking to treat acne scars and hyperpigmentation, start with these treatments.
—Elizabeth Robinson, NBC News, 9 Aug. 2024
Unfortunately, the sun’s UVA and UVB rays can not only cause sunburn but also lead to premature signs of skin aging—namely, wrinkles and hyperpigmentation—and even skin cancer.
—Brigitt Earley, Glamour, 8 Aug. 2024
There’s also vitamin C, which works behind the scenes to reduce hyperpigmentation.
—Venus Wong, refinery29.com, 2 Aug. 2024
See all Example Sentences for hyperpigmentation
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Dictionary Entries Near hyperpigmentation
Cite this Entry
“Hyperpigmentation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hyperpigmentation. Accessed 19 Aug. 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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