noun. a fibrous scleroprotein found in elastic tissues such as the walls of arteries.
1. Noun, singular or mass It helps restore elastin and collagen that have been damaged by free radicals, and in turn this can help even out your skin tone. 2. Coordinating conjunction Smoking also damages skin collagen—elastin fibers that give it strength and elasticity—resulting in loose skin under the eyes. 3. Adjective Stimulate the growth of healthy skin with creams and lotions that contain elastin and collagen.