CS Bio has been producing high quality custom manufactured peptides since our inception in 1993. We are dedicated to providing our customers with the highest quality compounds available in a time frame that meets each customer’s expectations. Whether you are in need of multiple peptides, long sequences, peptide modifications or even peptide reagents and synthesis equipment, CS Bio can be of assistance. All of our peptides come with a complete quality control package including HPLC analysis to ensure purity and mass spectral analysis to confirm identity. No set-up fees, no additional charges and we will never charge for a peptide unless it is produced exactly to your specifications.