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

The thick cream—meant to be used a few times a week—uses a mix of bioactive marine ingredients and staples like hyaluronic acid and vitamin B6 to deeply repair the skin barrier. —Perrie Samotin, Glamour, 31 Mar. 2025

Made with hyaluronic acid and an SPF of 50, its hydrating formula left editors’ skin with a glowy finish. —Shalwah Evans, People.com, 28 Mar. 2025

It’s formulated with skin-nourishing ingredients like collagen, vitamin E, hyaluronic acid, jojoba oil, green tea, aloe vera, and retinol to combat signs of aging without irritating the skin. —Alicia Geigel, Southern Living, 25 Mar. 2025

The cream also has hyaluronic acid to help the skin retain moisture. —Jenny Berg, Vogue, 24 Mar. 2025

Word History

Etymology

International Scientific Vocabulary

First Known Use

1934, in the meaning defined above

Rhymes for hyaluronic acid

• antacid
• placid

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