Elastin

Collagen gives the skin its strength and structure, while elastin allows it to stretch and return to its original shape. Together, these proteins form the primary support of the dermis.

UV rays, smoking, pollution, and free radicals are the primary factors responsible for the degradation of fibers of elastin. They activate enzymes called elastases, which destroy these structures.

Applying elastin to the skin generally does not reactivate natural elastin synthesis, as this protein’s molecular weight is too high to penetrate the skin barrier. However, certain fragmented forms such as elastin peptides or hydrolyzed elastin have shown in studies in vitro, they could stimulate fibroblast activity, the cells responsible for its production. These results, however, still need confirmation in vivo.

Dietary supplements based on elastin currently lack solid scientific evidence demonstrating their efficacy on the skin. Although some individuals report more supple, better-hydrated skin after a regimen, these effects remain subjective and have not been confirmed by published clinical studies.