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
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As with Korean retinols, using exfoliants that are mild enough to be used daily can ultimately maximize your glow while minimizing sensitivity.
—
Deanna Pai, Vogue, 14 Oct. 2025
These medications are up to 20 times stronger than over-the-counter retinols and can increase collagen production, speed up the skin’s natural regeneration process, exfoliate dead skin cells, and reduce acne.
—Jessie Quinn, StyleCaster, 10 Oct. 2025
What are the best non-prescription retinols?
—Justin Fenner, Robb Report, 9 Oct. 2025
For example, if your concern is fine lines and wrinkles, an anti-aging facial may focus on collagen stimulation using retinol, micro-current, and other tightening tools.
—Essence, 8 Oct. 2025
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Deanna Pai, Vogue, 14 Oct. 2025
These medications are up to 20 times stronger than over-the-counter retinols and can increase collagen production, speed up the skin’s natural regeneration process, exfoliate dead skin cells, and reduce acne.
—Jessie Quinn, StyleCaster, 10 Oct. 2025
What are the best non-prescription retinols?
—Justin Fenner, Robb Report, 9 Oct. 2025
For example, if your concern is fine lines and wrinkles, an anti-aging facial may focus on collagen stimulation using retinol, micro-current, and other tightening tools.
—Essence, 8 Oct. 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 17 Oct. 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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