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Palmitoyl tetrapeptide-7 (Palmitoyl tetrapeptide-7) is a synthetic peptide composed of four amino acids that is used to inhibit the production of excess cellular interleukins in beauty products and cosmetics. This chemical messenger triggers an acute inflammatory response in the body, leading to glycosylation damage, which causes damage to the crosslinking and binding process of glucose and proteins, hardening of tissues. Negatively affects the skin's support system, such as collagen, elastin and other proteins, resulting in wrinkles, sagging and uneven skin tone. PalmitoylTetrapeptide-7 delays and inhibits the production of excess cellular interleukin. Therefore, some unnecessary and inappropriate inflammatory reactions and glycosylation damage can be inhibited. In vitro experiments, the scientists found that when cells produced interleukin, "palmitoyl tetrapeptide-7 induction showed a significant dose-dependent reduction." The higher the dose of palmitoyl tetrapeptide-7, the greater the reduction in cellular interleukin Chemicalbook - up to 40 percent." UV ultraviolet radiation is known to promote the production of interleukin in cells. When the cells were exposed to ultraviolet radiation and then treated with palmitoyl tetrapeptide-7, an 86 percent reduction in interleukin was seen in the cells. Application Palmitoyl tetrapeptide-7 is a key component of Matrixyl3000 and is used in combination with palmitoyl-oligopeptide. Together, they promote the growth of connective tissue and increase collagen production in the skin; When collagen is increased, skin can heal and regenerate itself. Few independent studies have investigated palmitoyl tetrapeptide-7, formerly known as palmitoyl tetrapeptide-3 (Palmitoyl tetrapeptide-3), which can be found in the cosmetics database of the Environmental Working Group (EWG, citation #3: ewg) and is 100% safe for use in cosmetics and beauty products.