hyaluronic acid
noun
hy·al·uron·ic acid
ˌhī(-ə)l-yu̇-ˈrä-nik 
: a viscous glycosaminoglycan chiefly of the matrix of tissues that occurs especially in the vitreous humor, umbilical cord, synovial fluid, and loose connective tissue and serves especially as a structural element and lubricant
Examples of hyaluronic acid in a Sentence
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The masks use a form of collagen peptides—a buzzy skincare ingredient beloved for its anti-ageing properties as well as hydrating hyaluronic acid and skin barrier supporting niacinamide.
—
Ellie Davis, Vogue, 28 Oct. 2025
The lip treatment ampoules are infused with argan oil, omega 6 and hyaluronic acid and feature a relatively opaque pigment to align with the impact of the Contour It Lip Pencils.
—Noor Lobad, Footwear News, 28 Oct. 2025
According to the American Society of Plastic Surgeons’ 2024 Plastic Surgery Statistics Report, hyaluronic acid fillers were among the top minimally invasive cosmetic procedures of the year.
—Kara Nesvig, Allure, 27 Oct. 2025
Such ingredients include glycerin and hyaluronic acid, which help skin retain moisture.
—Sandee Lamotte, CNN Money, 21 Oct. 2025
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Ellie Davis, Vogue, 28 Oct. 2025
The lip treatment ampoules are infused with argan oil, omega 6 and hyaluronic acid and feature a relatively opaque pigment to align with the impact of the Contour It Lip Pencils.
—Noor Lobad, Footwear News, 28 Oct. 2025
According to the American Society of Plastic Surgeons’ 2024 Plastic Surgery Statistics Report, hyaluronic acid fillers were among the top minimally invasive cosmetic procedures of the year.
—Kara Nesvig, Allure, 27 Oct. 2025
Such ingredients include glycerin and hyaluronic acid, which help skin retain moisture.
—Sandee Lamotte, CNN Money, 21 Oct. 2025
See All Example Sentences for hyaluronic acid
Cite this Entry
“Hyaluronic acid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hyaluronic%20acid. Accessed 29 Oct. 2025.
Copy CitationMedical Definition
hyaluronic acid
noun
hy·al·uron·ic acid
ˌhīl-yu̇-ˌrän-ik-
ˌhī-əl-yu̇-
ˌhī-əl-yu̇-
: a viscous glycosaminoglycan that occurs especially in the vitreous body, the umbilical cord, and synovial fluid and as a cementing substance in the subcutaneous tissue
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