tretinoins
/trɛˈtɪnoʊɪnz/
noun
- Plural of tretinoin; multiple types or formulations of the vitamin A derivative used in skincare.
- Different tretinoins are available in various strengths for different skin types.
- The pharmacy stocked several tretinoins, including gels and creams.
- Researchers compared the effectiveness of two tretinoins in treating sun damage.