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

Recent Examples on the Web

It’s infused with many skincare ingredients found in facial products, like niacinamide and hyaluronic acid, to give you an overall glow. —Rebecca Martinson, Rolling Stone, 28 June 2024

Even though it’s loaded with SPF 46, niacinamide, hyaluronic acid, and even a hint of lactic acid, the sunscreen is pill-free and leaves no white cast behind. —Anamaria Glavan, Allure, 28 June 2024

Case in point: Olay’s Super Serum packs a punch, with brightening vitamin C, soothing niacinamide, plumping hyaluronic acid, and exfoliating lactic acid. —Jessica Kasparian, SELF, 27 June 2024

Shades: 20 | Coverage: Medium to full | Key Ingredients: Niacinamide, hyaluronic acid complex, bakuchiol, caffeine, and vitamin C | Fragrance: None Best for Mature Skin (Cheaper) e.l.f. —Kate Watson, Peoplemag, 28 May 2024

Word History

Etymology

International Scientific Vocabulary

First Known Use

1934, in the meaning defined above

Medical Definition

hyaluronic acid

noun

hy·​al·​uron·​ic acid ˌhīl-yu̇-ˌrän-ik-  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