retinol

noun

ret·​i·​nol ˈre-tə-ˌnȯl How to pronounce retinol (audio)
-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
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.
L'Oreal told me my optimal skincare routine would include ceramides (for moisture), retinol, and a good sunscreen. Emily Forlini, PCMAG, 9 Jan. 2025 The ingredient is also responsible for stimulating collagen production and works well when paired with other finicky ingredients like retinol. Michelle Rostamian, Allure, 30 Dec. 2024 To reduce side effects, consider applying vitamin C in the morning and retinol at night. Sarah Bradley, Health, 24 Dec. 2024 Unlike with retinol, your skin doesn’t have to slowly build up a tolerance to the serum. Lauren Taylor, Southern Living, 19 Dec. 2024 See all Example Sentences for retinol 

Word History

Etymology

retin- + -ol entry 1; from its being the source of retinal

First Known Use

1960, in the meaning defined above

Time Traveler
The first known use of retinol was in 1960

Dictionary Entries Near retinol

Cite this Entry

“Retinol.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/retinol. Accessed 18 Jan. 2025.

Kids Definition

retinol

noun
ret·​i·​nol ˈret-ᵊn-ˌȯl How to pronounce retinol (audio)
-ˌōl
: the most common form of vitamin A

Medical Definition

retinol

noun
ret·​i·​nol ˈret-ᵊn-ˌȯl How to pronounce retinol (audio) -ˌōl How to pronounce retinol (audio)

More from Merriam-Webster on retinol

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!