Myristoyl Hexapeptide-16 is a cosmetic ingredient that stimulates the growth of eyelashes and hair. By promoting the synthesis of keratin, the ingredient helps increase the length, density and strength of hair. It also has moisturizing properties, preventing water loss and improving skin elasticity, smoothness and softness. For this reason, Myristoyl Hexapeptide-16 is often used in mascaras and eyelash treatments to achieve the effect of lengthening and thickening eyelashes.