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
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The dual approach here, pairing hyaluronic acid’s short-term plumping with retinol’s longer-term collagen support, gives you both immediate and cumulative results from a single product.
—
Lauren Jarvis-Gibson, Miami Herald, 30 Mar. 2026
Featuring the dynamic duo of vitamin C and retinol, boosted by the power of vitamin B3 (niacinamide) and salicylic acid, along with soothing organic aloe vera, squalane, hyaluronic acid, MSM and rose hip oil to rejuvenate, nourish and target uneven skin tone.
—Tory Johnson, ABC News, 28 Mar. 2026
In some videos, young girls show off their skincare routines with products containing anti-ageing ingredients like retinol.
—Sawdah Bhaimiya, CNBC, 27 Mar. 2026
There’s also a touch of retinol—low on the ingredient list—but since this sleeping mask stays on overnight, sensitive skin types may want to patch-test first.
—Christa Joanna Lee, Allure, 26 Mar. 2026
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Lauren Jarvis-Gibson, Miami Herald, 30 Mar. 2026
Featuring the dynamic duo of vitamin C and retinol, boosted by the power of vitamin B3 (niacinamide) and salicylic acid, along with soothing organic aloe vera, squalane, hyaluronic acid, MSM and rose hip oil to rejuvenate, nourish and target uneven skin tone.
—Tory Johnson, ABC News, 28 Mar. 2026
In some videos, young girls show off their skincare routines with products containing anti-ageing ingredients like retinol.
—Sawdah Bhaimiya, CNBC, 27 Mar. 2026
There’s also a touch of retinol—low on the ingredient list—but since this sleeping mask stays on overnight, sensitive skin types may want to patch-test first.
—Christa Joanna Lee, Allure, 26 Mar. 2026
See All Example Sentences for retinol
Cite this Entry
“Retinol.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/retinol. Accessed 5 Apr. 2026.
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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