Pichia Extract/sr-(Octapeptide-65 sh-Polypeptide-47 Hexapeptide-40) is a single chain recombinant peptide produced by fermentation in Pichia, where the final product contains proteins from the Pichia host. The starting gene is synthesized by the fusion of the genes from Octapeptide-65, sh-Polypeptide-47, and Hexapeptide-40. The fusion peptide contains 1071 amino acids which may contain disulfide bonds and/or glycosylation, and consists of the proper sequence of the 20 standard amino acids.