Palmitoyl Pentapeptide has only 13 amino acids, and its molecular weight is small, so it is easy to be absorbed. One of its significant effects is to promote the proliferation of collagen and indirectly repair the micro-damage of human oral mucosa. The anti-aging chemicalbook effect of pentapeptide can prevent and improve gingival atrophy. In addition, pentapeptides can promote the proliferation of hyaluronic acid and elastic fibers, and can effectively activate the synthesis of hyaluronic acid, which is essential to maintain oral water and relieve dry mouth.