Myristoyl Pentapeptide-17 or SymPeptide 226,is also known as lash peptide.It is a five-amino acid peptide (Lys-Leu-Ala-Lys-Lys),which is attached to oil-soluble fatty acids, myristic acid,and has better bioavailability.It is known to significantly stimulate the keratin gene,that is,it causes cells