Impact of Peptide Technology on Anti-aging Products

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This chapter contains, in brief about the aging of skin and the molecular mechanisms involved therein. The symptoms of wrinkles, fine lines, pigmentation, and saggy and dry skin manifest in skin aging. Reactive oxygen species, reactive nitrogen species, Metalloproteases (MMPs), tyrosinase enzymes, and SASPs play a significant role. With the increasing awareness of people towards skin health, the demand for active ingredients to combat aging increases. Being light, non-toxic, stable, and moisturizing, peptides have been proven extremely beneficial in improving skin conditions. These peptides act via several mechanisms when applied locally or taken orally. Signal peptides, Carrier peptides, Neurotransmitter-inhibiting peptides, and Enzyme-inhibiting peptides act via different mechanisms. In the present chapter, a detailed review of the different types of peptides, their mechanisms, and their action to prevent skin aging have been described. These peptides help to improve skin damage, improves skin elasticity, softness and firmness. It also helps in whitening, rejuvenation, repair and thickening of skin. Peptides, being economic, have opened up a new era in cosmeceuticals. Current markets are flooded with peptide-containing anti-aging products with proven clinical efficacy.