Peptides are short chains of amino acids that are the building blocks of proteins. Naturally occurring human peptides are responsible for cellular communication. Think of them as tiny messengers, carrying important messages that support vital processes within the body, such as defense, immunity, stress, growth and, very importantly, homeostasis, a self-regulating process that helps the body stay balanced and adapt to changes around it.
Within the skin, small peptides known as “matrikines” are derived from the breakdown of collagen and elastin, two classes of proteins found in different tissues all over the body. These are present in the deeper layers of the skin.
Think of collagen and elastin as building blocks of a scaffold that keeps our skin structurally sound, each with very specific functions: while collagen imparts resilience, strength, and firmness to the skin, elastin gives skin the ability to bounce back.