What it is
Elastin is a fibrous protein that, in the body, gives connective tissue its flexibility; the cosmetic ingredient is a soluble or partially broken-down form sourced from animal connective tissue. Applied topically it works on the skin surface as a moisturizing, film-forming conditioning agent that can give a smooth, supple feel. It does not replace the skin's own elastin but functions as a surface humectant and conditioner.
Safety & warnings
Topical elastin is generally well tolerated and is used as a surface conditioning protein. As with other protein ingredients, sensitive individuals can occasionally react. It is not considered comedogenic and is not a known fragrance allergen.
Origin & sourcing
Typically animal-derived, prepared from connective tissue such as bovine or fish sources and then solubilized or hydrolyzed for cosmetic use.
Questions everyone asks
Does topical elastin rebuild skin's elastin?
No. It works on the skin surface as a moisturizing, film-forming conditioner and does not replace or rebuild the skin's own elastin fibers.
Where does cosmetic elastin come from?
It is usually derived from animal connective tissue, then made soluble or hydrolyzed so it can be used in skincare.