The middle layer of the skin, called the dermis, is made up of collagen and elastin fibers that support the skin's structure. With age, the amount of collagen in the skin decreases and the integrity of the elastic extracellular matrix is broken, resulting in thin, loose, and sometimes saggy skin. Moreover, the loss of collagen accelerates ultraviolet radiation. Matrixyl, also known as Palmitoyl Pentapeptide-4, consists of 5 amino acids that are optimally absorbed by the skin. Once absorbed, Matrixyl stimulates collagen production and strengthens the dermal matrix that supports skin structure. Clinical studies indicate that Matrixyl is effective in repairing sun-damaged skin in the same way as retinol, but does not cause irritation and redness.
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