tretinoin
noun
tre·tin·o·in
| \ tre-ˈti-nə-win
\
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Definition of tretinoin
: the all-trans isomer of retinoic acid that is applied to the skin to treat severe acne and reduce facial wrinkles, roughness, and pigmented spots
Examples of tretinoin in a Sentence
Recent Examples on the Web
For example, retinoids such as tretinoin and isotretinoin are a no-no during pregnancy because they have been linked to birth defects. — Nikhita Mahtani, SELF, "How to Safely Treat Your Postpartum Acne," 24 Apr. 2019 Prescription topical retinoids, like tretinoin, may also be an option recommended by your dermatologist. — Allure, "The 14 Best Cystic Acne Treatments, According to Dermatologists," 28 Mar. 2019 As a refresher, most wrinkle creams are filled with your classic retinol or tretinoin, two of the strongest (and potentially irritating) topical retinoids. — Chloe Metzger, Marie Claire, "The 5 Truly Excellent Beauty Products I'm Loving This Week," 10 Oct. 2018 Stop using skincare products with harsh ingredients, including glycolic and salicylic acids, benzoyl peroxide, and any retinoids (including tretinoin and adapalene), at least five days before your treatment. — Deanna Pai, Glamour, "The Brown Girl's Guide to Laser Hair Removal," 20 Aug. 2018 Night cream + retinol: Lortscher says that your nightly retinol application can come in the form of creams with over-the-counter retinol or a prescription retinoid, such as tretinoin. — Adam Hurly, GQ, "How to Fix Your Dehydrated Skin," 3 July 2018 Retinol and tretinoin should only be used at night. — Dr. Leslie Baumann, miamiherald, "What you need to know about 'hazardous' sunscreen ingredients | Miami Herald," 27 Apr. 2018 Bottom line: The vitamin A derivatives known as retinol, tretinoin, adapalene, and tazarotene can protect the skin from sun damage. — Dr. Leslie Baumann, miamiherald, "What you need to know about 'hazardous' sunscreen ingredients | Miami Herald," 27 Apr. 2018 But the recent proliferation of various AHA, BHA, and PHA acids and ceramide, niacinamide, and tretinoin creams in my medicine cabinet suggests otherwise. — Lisa Haney, The Cut, "What It’s Like to Break Your Face Like Carrie Underwood," 16 Apr. 2018These example sentences are selected automatically from various online news sources to reflect current usage of the word 'tretinoin.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
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More Definitions for tretinoin
tretinoin
noun
tre·tin·o·in
| \ tre-ˈtin-ə-wən
\
\
Medical Definition of tretinoin
: the all-trans isomer of retinoic acid that is applied topically to the skin to treat acne vulgaris and to reduce facial wrinkles, roughness, and pigmented spots and that is administered orally to induce remission of acute myelogenous leukemia in which more than half the cells are malignant promyelocytes
— called also all-trans-retinoic acid, retinoic acid, vitamin A acid
— see isotretinoin, retin-a