Actually growth factor appeared in the ingredient list under their commercial name:
sh-Polypeptide-1, sh-Oligopeptide-2, sh-Polypeptide-9, sh-Polypeptide-4, sh-Polypeptide-10, sh-Polypeptide-60, sh-Polypeptide-85, Acetyl sh-Oligopeptide-77 Amide.
You can find the correspondance for some of them...