Cyclo (Cystinyl Tyrosyl sh-Decapeptide-10 SP) Lysinamide N6-carboxy PEG-5 Dipeptide-79 D-Phenylalanyl Arginine D-Tyrosinyl Tetrapeptide-139 is the synthetic peptide consisting of cyclized Cysteine, Tyrosine, and sh-Decapeptide-10 SP, and Lysine in which the C terminus is an amide, that has been modified at the N6 position of lysine with a carboxy PEG-5 derivative of the synthetic peptide consisting of Dipeptide-79, D-phenylalanine, Arginine, D-tyrosine, and Tetrapeptide-139.