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

While retinol works to increase skin turnover, vitamin C accelerates the healthy radiance and glow. —Rosa Jisoo Pyo, Vogue, 28 Apr. 2025

While vitamin C, retinol, and hyaluronic acid serums get a lot of attention, there’s a dark horse out there by the name of niacinamide. —Alanna Martine Kilkeary, Glamour, 28 Apr. 2025

However, that's not to say retinol is overlooked all together. —Sarah Han, Allure, 25 Apr. 2025

Neutrogena Healthy Skin Anti-Aging Perfector Moisturizer $13 $9 at Amazon The moisturizer is formulated with retinol, a powerful ingredient that works to increase collagen production to plump up fine lines and wrinkles, even skin tone, decrease hyper pigmentation, and much more. —Alicia Geigel, Southern Living, 25 Apr. 2025

Word History

Etymology

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

First Known Use

1960, in the meaning defined above

Rhymes for retinol

• aerosol
• alcohol
• arbitral
• basketball
• butanol
• cannonball
• carbinol
• catarrhal
• cortisol
• ethanol
• fireball
• gasohol

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