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
That's because retinol is essential for producing rhodopsin, the pigment that allows your eyes to adjust to darkness and low-light conditions.
—
Daryl Austin, USA Today, 7 Dec. 2025
Among her bestsellers is the Retinol Reform Serum, which offers the benefits of retinol without the irritation.
—Ryma Chikhoune, Footwear News, 7 Dec. 2025
The best bakuchiol serums deliver the brightening, tightening effects of retinol, minus the irritation—ever-more imperative as the temperatures dip.
—Kiana Murden, Vogue, 5 Dec. 2025
For fine lines and wrinkles, look for one with retinol.
—Grace McCarty, Glamour, 5 Dec. 2025
See All Example Sentences for retinol
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Daryl Austin, USA Today, 7 Dec. 2025
Among her bestsellers is the Retinol Reform Serum, which offers the benefits of retinol without the irritation.
—Ryma Chikhoune, Footwear News, 7 Dec. 2025
The best bakuchiol serums deliver the brightening, tightening effects of retinol, minus the irritation—ever-more imperative as the temperatures dip.
—Kiana Murden, Vogue, 5 Dec. 2025
For fine lines and wrinkles, look for one with retinol.
—Grace McCarty, Glamour, 5 Dec. 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 16 Dec. 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
Love words? Need even more definitions?
Merriam-Webster unabridged
Share