elastin
noun
elas·tin
i-ˈla-stən 
: a protein that is similar to collagen and is the chief constituent of elastic fibers
Examples of elastin in a Sentence
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Plus, Neutrogena’s patented micro-peptide technology, which allows the peptides to penetrate more easily into the skin and better, boosts collagen and elastin production.
—
Lily Wohlner, Allure, 24 Jan. 2026
Think peptides that help preserve the skin’s collagen reserves, keeping it soft and supple; polyglutamic acid, which hydrates far more deeply than hyaluronic acid; and growth factors to further support collagen and elastin, the two key proteins that give skin structure and help prevent fine lines.
—Jacqueline Kilikita, Refinery29, 22 Jan. 2026
This is a gradual self-tanning lotion that helps reduce the appearance of cellulite with ingredients such as collagen, elastin and caffeine from green tea.
—Bestreviews, Chicago Tribune, 21 Jan. 2026
Lastly, citrus peel helps with collagen and elastin production in addition to brightening dull under-eyes.
—Tamim Alnuweiri, InStyle, 18 Jan. 2026
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Lily Wohlner, Allure, 24 Jan. 2026
Think peptides that help preserve the skin’s collagen reserves, keeping it soft and supple; polyglutamic acid, which hydrates far more deeply than hyaluronic acid; and growth factors to further support collagen and elastin, the two key proteins that give skin structure and help prevent fine lines.
—Jacqueline Kilikita, Refinery29, 22 Jan. 2026
This is a gradual self-tanning lotion that helps reduce the appearance of cellulite with ingredients such as collagen, elastin and caffeine from green tea.
—Bestreviews, Chicago Tribune, 21 Jan. 2026
Lastly, citrus peel helps with collagen and elastin production in addition to brightening dull under-eyes.
—Tamim Alnuweiri, InStyle, 18 Jan. 2026
See All Example Sentences for elastin
Cite this Entry
“Elastin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/elastin. Accessed 1 Feb. 2026.
Copy CitationKids Definition
elastin
noun
elas·tin
i-ˈlas-tən
: a protein that is similar to collagen and helps make up the elastic fibers of connective tissue
Medical Definition
elastin
noun
elas·tin
i-ˈlas-tən
: a protein that is similar to collagen and is the chief constituent of elastic fibers
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