Myristoyl Hexapeptide-4 is a hydrophilic peptide rich in the essential amino acid threonine with sequence Myr-Thr-Lys-Thr-Thr-Lys-Ser-NH2, which is more bioactive, thanks to modifications during production. It boosts the skin's structural protein production and inhibits the synthesis of the MMP-1 enzyme responsible for collagen destruction.
In vitro studies showed that Myristoyl Hexapeptide-4 upregulates genes responsible for synthesizing collagen IV and VII, fibronectin, elastin, and integrin. In addition, it downregulates genes responsible for MMP-1 production, preventing collagen degradation and enhancing quantities.
Myristoyl Hexapeptide-4 makes skin firmer and smoother and improves elasticity. Moreover, it promotes skin hydration and helps to maintain a healthy balance.