retinol
noun
ret·i·nol
ˈre-tə-ˌnȯl 
-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
Since retinol can make your skin more sensitive to the sun, don’t forget to apply SPF (as usual).
—
Christa Joanna Lee, Allure, 6 Mar. 2025
This serum combines the power of retinol with the calming properties of cica to repair and rejuvenate your skin.
—Maria Correa, Miami Herald, 3 Mar. 2025
This could be due to cold, dry weather, sweating, not drinking enough water, or overusing strong actives (like exfoliating acids and retinol, which can potentially weaken your barrier).
—Jenna Ryu, SELF, 11 Feb. 2025
The formula features retinol, a famously potent ingredient that can sometimes be too harsh for sensitive skin.
—R29 Team, refinery29.com, 29 Jan. 2025
See All Example Sentences for retinol
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Christa Joanna Lee, Allure, 6 Mar. 2025
This serum combines the power of retinol with the calming properties of cica to repair and rejuvenate your skin.
—Maria Correa, Miami Herald, 3 Mar. 2025
This could be due to cold, dry weather, sweating, not drinking enough water, or overusing strong actives (like exfoliating acids and retinol, which can potentially weaken your barrier).
—Jenna Ryu, SELF, 11 Feb. 2025
The formula features retinol, a famously potent ingredient that can sometimes be too harsh for sensitive skin.
—R29 Team, refinery29.com, 29 Jan. 2025
See All Example Sentences for retinol
Cite this Entry
“Retinol.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/retinol. Accessed 22 Mar. 2025.
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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