retinol
noun
ret·i·nol
ˈre-tə-ˌnȯl 
-ˌnōl
-ˌnōl
: the chief and typical vitamin A C20H29OH that is a highly unsaturated alicyclic alcohol used in various forms in medicine and nutrition
Examples of retinol in a Sentence
Recent Examples on the Web
High levels of retinol found in liver can cause birth defects.
—
Sheah Rarback, Miami Herald, 12 Mar. 2026
An InStyle writer interviewed three dermatologists to uncover their favorite retinol creams.
—Isabel Bekele, InStyle, 11 Mar. 2026
The Korean beauty brand, Beauty of Joseon, utilizes ginseng extract, retinol, and niacinamide for a powerful yet gentle eye cream.
—Gabriela Izquierdo, Southern Living, 10 Mar. 2026
The retinol in the formula also helps address discoloration and dullness, for overall brighter and more even-toned skin.
—Alanna Martine Kilkeary, Glamour, 6 Mar. 2026
See All Example Sentences for retinol
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Sheah Rarback, Miami Herald, 12 Mar. 2026
An InStyle writer interviewed three dermatologists to uncover their favorite retinol creams.
—Isabel Bekele, InStyle, 11 Mar. 2026
The Korean beauty brand, Beauty of Joseon, utilizes ginseng extract, retinol, and niacinamide for a powerful yet gentle eye cream.
—Gabriela Izquierdo, Southern Living, 10 Mar. 2026
The retinol in the formula also helps address discoloration and dullness, for overall brighter and more even-toned skin.
—Alanna Martine Kilkeary, Glamour, 6 Mar. 2026
See All Example Sentences for retinol
Cite this Entry
“Retinol.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/retinol. Accessed 17 Mar. 2026.
Copy CitationKids Definition
retinol
noun
ret·i·nol
ˈret-ᵊn-ˌȯl
-ˌōl
: the most common form of vitamin A
Medical Definition
retinol
noun
ret·i·nol
ˈret-ᵊn-ˌȯl
-ˌōl
-ˌōl
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