hyperpigmentation
noun
hy·per·pig·men·ta·tion
ËŒhÄ«-pÉ™r-ËŒpig-mÉ™n-ˈtÄ-shÉ™n 
-ËŒmen-
: 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 product was clinically tested and proven to result in improved skin firmness, hyperpigmentation and crow’s feet, deep lines and wrinkles.
—Bestreviews, Chicago Tribune, 25 Mar. 2026
With the same concept as an exfoliating serum for your face—tackling hyperpigmentation, sloughing off patchy texture, controlling acne, and improving overall skin tone—exfoliation has gone full body with everything from sprays to buffing bars and serums.
—Conçetta Ciarlo, Vogue, 23 Mar. 2026
Post-inflammatory hyperpigmentation—aka darkness that is left behind after inflammation, similar to dark spots.
—Caroline Shannon Karasik, InStyle, 15 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
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Bestreviews, Chicago Tribune, 25 Mar. 2026
With the same concept as an exfoliating serum for your face—tackling hyperpigmentation, sloughing off patchy texture, controlling acne, and improving overall skin tone—exfoliation has gone full body with everything from sprays to buffing bars and serums.
—Conçetta Ciarlo, Vogue, 23 Mar. 2026
Post-inflammatory hyperpigmentation—aka darkness that is left behind after inflammation, similar to dark spots.
—Caroline Shannon Karasik, InStyle, 15 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
See All Example Sentences for hyperpigmentation
Cite this Entry
“Hyperpigmentation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hyperpigmentation. Accessed 27 Mar. 2026.
Copy CitationMedical Definition
hyperpigmentation
noun
hy·per·pig·men·ta·tion
-ËŒpig-mÉ™n-ˈtÄ-shÉ™n, -ËŒmen-
: 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
