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tretinoin

American  
[truh-tin-oh-in] / trəˈtɪn oʊ ɪn /

noun

  1. a drug chemically related to vitamin A, used as a topical ointment to treat skin disorders, especially acne.


Etymology

Origin of tretinoin

1960–65; t(ri-) + retino- (< Greek rhētī́nē resin) + -in 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“I also make a compound with minoxidil that helps growth, a steroid and a little bit of tretinoin to help it all penetrate,” she said.

From New York Times • Apr. 2, 2018

In the 1960s Dr. Kligman became interested in tretinoin, a pharmacologically active derivative of Vitamin A. European researchers had experimented with it but considered it too irritating for topical use.

From New York Times • Feb. 23, 2010

Nearly 40 years later, tretinoin remains a staple of acne treatment.

From New York Times • Feb. 23, 2010

Dr. Kligman’s discovery that tretinoin, the active ingredient in Retin-A, could improve acne and reduce facial wrinkles generated substantial royalties, which he used to donate millions of dollars to the University of Pennsylvania’s dermatology department.

From New York Times • Feb. 23, 2010

Their active ingredient, a form of vitamin A called tretinoin, does at least two things: it boosts the development of firm new keratinocytes and smooths tiny creases in the upper layers of the epidermis.

From Time Magazine Archive