Frequently Asked Questions

Research peptides are compounds composed of linked amino acids that are used in laboratory and scientific research. Researchers study peptides to better understand biological mechanisms, cellular processes, and molecular interactions.

Yes. Our products are third-party tested by U.S.-based laboratories to support product quality, identity, and purity.

Purity X Peptides provides batch-specific Certificates of Analysis (COAs) containing the available analytical results.

Customers are able to match the lot number printed on the product label to the lot number shown on the corresponding COA.

Certificates of Analysis are available through our COA page. Documentation may also be linked from the corresponding product page.

Product purity information is listed on the corresponding batch-specific Certificate of Analysis. Customers should review the COA associated with the lot number printed on their product.

Purity requirements vary depending on the intended research application. For many in vitro laboratory applications, peptide purity of ≥95% is commonly used as a general research-grade benchmark.

These products have not been evaluated by the U.S. Food and Drug Administration and are not intended to diagnose, treat, cure, or prevent any disease. They are not intended for human or veterinary use, ingestion, injection, or clinical application.

Due to the nature of research materials, all sales are final. If you receive a damaged, defective, or incorrect order, please contact support@purityxpeptides.com within 7 days of delivery.

Orders are typically processed within 1 business day. Delivery times vary by carrier, shipping method, destination, weather, and other conditions outside our control. Orders are not processed or shipped on holidays.

Yes. Tracking information is automatically emailed after your order has shipped. Please allow time for the carrier to activate and update the tracking number.

Orders may be canceled only if they have not entered fulfillment and a shipping label has not been created. Contact support@purityxpeptides.com as soon as possible. Cancellation cannot be guaranteed.

Storage recommendations are provided on product labels and product pages. Follow the applicable handling and storage instructions to help preserve product integrity.

Email support@purityxpeptides.com or use the contact form linked in the website header.

We aim to respond to most inquiries within 1 business day.