elastin
noun
elas·tin i-ˈla-stən 
: a protein that is similar to collagen and is the chief constituent of elastic fibers
Example Sentences
Recent Examples on the Web Combining two powerhouses: radio frequency and ultrasound, this treatment helps the skin renew its own elastin and collagen from within — responsible for firmness and plumpness — over the course of around 4 treatments with two-week gaps in-between. 
Angela Lei, Forbes, 16 Aug. 2022 Promotes firmness: Vitamin C boosts elastin and collagen production in the skin. Adam Hurly, Robb Report, 26 Aug. 2021 Resveratrol, a natural ingredient found in grapevines, gently smoothes out wrinkles and boosts elastin and collagen around the eyes for a more energized, vibrant appearance. Hillary Maglin, Travel + Leisure, 26 Apr. 2020 ELASTIN Stretchy structural proteins that allow skin to snap back into place, elastin is particularly vulnerable to sun damage. Allure, 17 Aug. 2018 Ultraviolet rays, which can break down skin’s stretchy layers of elastin fibers. Amanda Macmillan, Health.com, 20 Mar. 2018 Peptides are short chains of amino acids that mimic skin functions like the production of collagen and elastin. Maya Mcdowell, Harper's BAZAAR, 24 Feb. 2020 While on the pricier side, this skin tightening machine uses the latest bipolar radio frequency technology, which the brand says stimulates collagen and elastin production. Popular Science, 6 Feb. 2020 And those free radicals break down collagen and elastin, which is why countering them with antioxidants can go a long way. Deanna Pai, Condé Nast Traveler, 4 Oct. 2019 See More
Angela Lei, Forbes, 16 Aug. 2022 Promotes firmness: Vitamin C boosts elastin and collagen production in the skin. Adam Hurly, Robb Report, 26 Aug. 2021 Resveratrol, a natural ingredient found in grapevines, gently smoothes out wrinkles and boosts elastin and collagen around the eyes for a more energized, vibrant appearance. Hillary Maglin, Travel + Leisure, 26 Apr. 2020 ELASTIN Stretchy structural proteins that allow skin to snap back into place, elastin is particularly vulnerable to sun damage. Allure, 17 Aug. 2018 Ultraviolet rays, which can break down skin’s stretchy layers of elastin fibers. Amanda Macmillan, Health.com, 20 Mar. 2018 Peptides are short chains of amino acids that mimic skin functions like the production of collagen and elastin. Maya Mcdowell, Harper's BAZAAR, 24 Feb. 2020 While on the pricier side, this skin tightening machine uses the latest bipolar radio frequency technology, which the brand says stimulates collagen and elastin production. Popular Science, 6 Feb. 2020 And those free radicals break down collagen and elastin, which is why countering them with antioxidants can go a long way. Deanna Pai, Condé Nast Traveler, 4 Oct. 2019 See More Word History
Etymology
International Scientific Vocabulary, from New Latin elasticus
First Known Use
1875, in the meaning defined above
Medical Definition
elastin
noun
elas·tin i-ˈlas-tən
: a protein that is similar to collagen and is the chief constituent of elastic fibers