retinoid
noun
ret·i·noid
ˈre-tə-ˌnȯid 
: any of various synthetic or naturally occurring analogs of vitamin A
Examples of retinoid in a Sentence
Recent Examples on the Web
Brighter, smoother, clearer, firmer skin—the benefits of alpha hydroxy acids for skin almost sound comparable to those of retinol and retinoids.
—
Emily Orofino, Vogue, 25 Aug. 2025
Additionally, don’t forget to use your daily SPF, as potent ingredients such as retinoids can be reactive to the sun, causing irritation and even burning.
—Lisa Desantis, Glamour, 20 Aug. 2025
While beta-carotene from plant sources is generally safe, very high intakes over time may interfere with certain medications such as retinoids or blood thinners.
—Daryl Austin, USA Today, 9 Aug. 2025
According to Libby, ingredients like niacinamide, hyaluronic acid, and ceramides can boost your skin’s moisture; peptides and retinoids can support collagen production; and, antioxidants and SPF 50 (or higher) can brighten and protect the skin.
—Essence, 30 July 2025
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Emily Orofino, Vogue, 25 Aug. 2025
Additionally, don’t forget to use your daily SPF, as potent ingredients such as retinoids can be reactive to the sun, causing irritation and even burning.
—Lisa Desantis, Glamour, 20 Aug. 2025
While beta-carotene from plant sources is generally safe, very high intakes over time may interfere with certain medications such as retinoids or blood thinners.
—Daryl Austin, USA Today, 9 Aug. 2025
According to Libby, ingredients like niacinamide, hyaluronic acid, and ceramides can boost your skin’s moisture; peptides and retinoids can support collagen production; and, antioxidants and SPF 50 (or higher) can brighten and protect the skin.
—Essence, 30 July 2025
See All Example Sentences for retinoid
Cite this Entry
“Retinoid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/retinoid. Accessed 9 Sep. 2025.
Copy CitationMedical Definition
retinoid
noun
ret·i·noid
ˈret-ᵊn-ˌȯid
: any of various synthetic or naturally occurring analogs of vitamin A
retinoid
adjective
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