retinoic acid
noun
ret·i·no·ic acid
ˌre-tə-ˈnō-ik- 
: either of two isomers of an acid C20H28O2 derived from vitamin A and used in the treatment of acne:
a
b
Examples of retinoic acid in a Sentence
Recent Examples on the Web
Once it’s applied, retinoic acid gets to work on the signs of aging skin.
—
Lori Youmshajekian, Scientific American, 11 Sep. 2024
Once the skin absorbs any of these products, it is broken down into its usable form of retinoic acid.
—William Truswell, Verywell Health, 30 Oct. 2024
Regular retinol must go through two conversion steps, transforming into retinal before turning into retinoic acid.
—Emily Orofino, Allure, 29 Oct. 2024
Because of its lower concentration of retinoic acid, retinol doesn’t require a prescription, and is a popular choice for line-smoothing moisturizers such as Philosophy’s new cream.
—Jackie Fields, People.com, 1 Oct. 2024
See all Example Sentences for retinoic acid 
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Lori Youmshajekian, Scientific American, 11 Sep. 2024
Once the skin absorbs any of these products, it is broken down into its usable form of retinoic acid.
—William Truswell, Verywell Health, 30 Oct. 2024
Regular retinol must go through two conversion steps, transforming into retinal before turning into retinoic acid.
—Emily Orofino, Allure, 29 Oct. 2024
Because of its lower concentration of retinoic acid, retinol doesn’t require a prescription, and is a popular choice for line-smoothing moisturizers such as Philosophy’s new cream.
—Jackie Fields, People.com, 1 Oct. 2024
See all Example Sentences for retinoic acid
Dictionary Entries Near retinoic acid
Cite this Entry
“Retinoic acid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/retinoic%20acid. Accessed 27 Nov. 2024.
Copy CitationMedical Definition
retinoic acid
noun
ret·i·no·ic acid
ˌret-ᵊn-ˌō-ik-
: either of two isomers of an acid C20H28O2 derived from vitamin A and used especially in the treatment of acne:
a
or all-trans-retinoic acid
: tretinoin
b
or 13-cis-retinoic acid
: isotretinoin
Love words? Need even more definitions?
Merriam-Webster unabridged
Share