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

So for parts of your face that are already parched, both derms suggest skipping retinol, acne-fighters, and exfoliants. —Jenna Ryu, SELF, 4 Dec. 2024

The Peace Out Pore Minimizing Strips take pore strips up a notch with hydrocolloid polymers, retinol, DMAE, and vitamin A to deep-clean, lift out impurities, and visibly shrink the appearance of pores on and around your nose. —Christa Joanna Lee, Allure, 3 Dec. 2024

Neutrogena Rapid Tone Repair Dark Spot Corrector With an assist from retinol, this dark spot corrector’s formula is ideal for those looking for anti-aging effects. —Madison Yauger, People.com, 29 Nov. 2024

This retinol kit perfectly safeguards your skin when introducing a retinoid into your routine. —Hannah Rice, Rolling Stone, 22 Nov. 2024

Word History

Etymology

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

First Known Use

1960, in the meaning defined above

Kids 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 

: vitamin a sense a