These short chains of amino acids are building blocks of proteins in our bodies, including collagen and elastin
, explains Dr. Victoria Taraska, a dermatologist at the Derm Centre/Victoria Park Medispa in Winnipeg. Those two components contribute to the fibrous structure of the inner layers of the skin and result in a healthy, resilient and cushiony complexion.
There are many different types of peptides, each with different benefits. “In skin care, they are synthesized in labs to mimic those in the body,” says Taraska. They can also be broken down by function. Matrixyl, which stimulates collagen production, is a popular type of signal peptide that you’ll see on labels. Carrier peptides, which include copper peptides, deliver trace elements to the skin. “They help with wound healing and elasticity,” says Taraska. Argireline is a neurotransmitter-inhibitor peptide known for wrinkle prevention. “It works by relaxing facial muscles, helping to reduce the depth of expression lines,” she says.
Unlike active ingredients, such as vitamin C, alpha-hydroxy acids or retinol, which can be potentially aggravating and should be added to a skin-care routine slowly, anyone can jump into using peptides. “They are suitable for all skin types, including sensitive skin, because they are generally non-irritating,” says Taraska.
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