Purity Peptides specializes in high purity peptides compounded in U.S. facilities, supported by full COA transparency and independent third-party testing. Every vial is validated for purity and consistency, ensuring researchers receive materials they can trust.

Each batch undergoes comprehensive analysis, including HPLC and mass spectrometry testing, to verify purity and molecular accuracy. These results are documented in the accompanying Certificate of Analysis. This gives researchers clear insight into the exact specifications of the peptide they’re using.

We strive to provide same-day shipping whenever possible and guarantee next-day shipping for all orders placed before 2 PM. While many orders do ship the same business day, processing times may vary based on inventory levels and order size. Most orders arrive within two business days via FedEx once shipped. All orders over $200 automatically qualify for free shipping. Our team understands the fast pace of research and works to ensure prompt, reliable delivery.

Absolutely. We offer custom formulations, multi-vial box kits, and wholesale support for laboratories and organizations needing larger quantities. To request a tailored blend or larger volume order, simply complete our Custom Blend Inquiry Form or Wholesale Inquiry Form.

"For research use only” indicates that the peptides sold by Purity Peptides LLC are not drugs or supplements and are not intended to diagnose, treat, or prevent any disease. They are meant exclusively for in vitro studies or preclinical lab work by professionals. These products are not intended for human or animal consumption.