Loss of elasticity is directly tied to a loss of collagen, so it makes sense that you'd want to incorporate this ingredient into your regimen if firmer skin is your objective.
"Peptides are short chains of amino acids and the building blocks of proteins. Most people know collagen, the most popular," explained Dr. Michelle Yagoda, a facial plastic surgeon based in NYC.
We recommend HydroPeptide's new Nimni Cream ($110), a collagen-boosting cream you apply at night to help improve elasticity while you sleep. Another great option is Algenist's Genius Liquid Collagen ($115) which contains collagen amino acids to bolster the skin's matrix, microalgae to hydrate and nourish, and patented alguronic acid.