Palmitoyl Dipeptide-5 Diaminohydroxybutyrate is a bioactive peptide with anti-aging properties that is commonly used as a cosmetic ingredient. This peptide is known for its ability to stimulate the synthesis of proteins that are crucial for skin health and structure, such as laminin V, collagen IV, VII, and XVII, and integrin β4. By improving the dermal-epidermal junction (DEJ) function, it helps to restructure the skin, enhance intercellular communication, and promote the exchange of nutrients, which can reduce the signs of premature skin aging and damage. The use of Palmitoyl Dipeptide-5 Diaminohydroxybutyrate contributes to smoother skin, a reduction in the appearance of wrinkles, and a more youthful, firm complexion.