Peptron, Inc., established in 1997, has become a leading life science company providing innovative products and technology to life science researchers, biotech industry, and pharmaceutical companies. Peptron has focused on four major areas: custom peptide synthesis service and related products, peptide DDS technology development, peptide cosmetic ingredient development, and peptide drug discovery. Expertise in peptides and proteins has enabled Peptron to develop sustained release injectable formulation technologies for known peptide and protein drugs. There are more than 300 peptide drug candidates that are being developed worldwide. Due to recent technologies such as DDS to enhance the stability of the peptides, more peptide drugs are being developed. At Peptron, drug discovery program focuses on angiogenesis inhibiting peptides, osteoporosis inhibiting peptides, and peptides as ES cell differentiation factors.