Everything you need to know about our research peptides, ordering, shipping, and quality standards — all in one place.
Placing an order is simple. Browse our products page, select the peptide you need, and click "Order Now." You'll be directed to our secure Stripe checkout page where you can complete your purchase using any major credit or debit card. All orders are processed within 24 hours.
We accept all major credit and debit cards through our secure Stripe checkout:
All transactions are processed securely through Stripe's payment gateway with bank-level encryption.
No, there is no minimum order requirement at Pep-Source. Whether you need a single vial for a pilot study or bulk quantities for large-scale research, we're happy to accommodate your needs. Volume discounts may be available for bulk orders — please contact us for more information.
Due to the nature of our products and to maintain the integrity of our quality control, we do not accept returns. However, if you receive a damaged product or an incorrect shipment, please contact us within 48 hours of delivery and we will work to resolve the issue promptly. Your satisfaction and research continuity matter to us.
Orders are typically processed and shipped within 24 hours of payment confirmation. We ship Monday through Friday, and tracking information is provided as soon as your order is dispatched. Most domestic orders arrive within 3-5 business days, with expedited shipping options available for qualifying orders.
Currently, we primarily ship within the United States. International shipping may be available on a case-by-case basis. If you're an international researcher interested in our products, please reach out to our team and we'll explore available options for your region.
All orders are packaged discreetly in plain, unmarked boxes with no exterior branding. Peptide vials are securely wrapped with protective insulation to prevent damage during transit. We ship lyophilized (freeze-dried) peptides at room temperature, which remain stable during shipping. Upon receipt, we recommend storing at -20°C for long-term stability.
Yes! Once your order ships, you'll receive an email with your tracking number. You can track your package's journey in real-time until it arrives at your lab. If you haven't received your tracking information within 48 hours of placing your order, please check your spam folder or contact our support team.
All Pep-Source peptides are guaranteed to have a minimum purity of 99%+. We consistently achieve purity levels of 99.5%+ in the majority of our batches. Every batch undergoes rigorous third-party testing by independent laboratories including Janoshik Analytical, the industry gold standard for peptide analysis, and our Certificates of Analysis (CoAs) are publicly available on our CoA page.
We use Janoshik Analytical and other ISO-certified independent laboratories for all third-party testing. These are the same labs trusted by leading pharmaceutical companies worldwide. We believe in complete transparency — every Certificate of Analysis is accessible on our website, linked directly from each product page. We never hide results or cherry-pick favorable batches.
Yes. All our peptides are synthesized in GMP-compliant (Good Manufacturing Practice) facilities that adhere to strict quality control standards. Each step of the synthesis and purification process is carefully monitored and documented. Our manufacturing partners are audited regularly to ensure they maintain the highest standards of quality and consistency.
For optimal stability, we recommend the following storage protocol:
No. All products sold by Pep-Source are intended strictly for laboratory research purposes only. They are not for human consumption, veterinary use, or diagnostic purposes. By purchasing from us, you confirm that you are a qualified researcher or laboratory professional and will use these products only in accordance with all applicable laws and regulations. All customers must be 18+.
Our products are available exclusively to qualified researchers, laboratory professionals, and academic institutions for legitimate scientific research. By placing an order, you certify that you are at least 18 years of age and that the products will be used solely for in-vitro research in a controlled laboratory environment. We reserve the right to verify credentials and refuse service to anyone who does not meet these requirements.
Yes, we offer competitive bulk and wholesale pricing for academic institutions, research organizations, and laboratories with ongoing needs. Please contact our team with your specific requirements including the peptides you're interested in and your estimated volume, and we'll work with you on a customized pricing plan.
You can reach our support team through multiple channels:
Pep-Source stands out from other suppliers in several key ways:
Our team is ready to help. Reach out and we'll get back to you within hours — not days.
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