All Peptides.GG products are manufactured to research-grade specifications with a minimum purity of 99%+. Each batch undergoes rigorous third-party laboratory testing using HPLC (High-Performance Liquid Chromatography) to verify purity levels. We only release products that meet or exceed our strict quality standards.

Yes, absolutely. Every order includes a Certificate of Analysis from an accredited third-party laboratory. The CoA contains complete testing results for your specific batch, including:

• HPLC purity analysis (≥99%)
• Mass spectrometry results confirming molecular weight
• Bacterial endotoxin testing
• Sterility verification

This documentation provides full traceability for your research records.

Our peptides are manufactured in GMP-certified facilities located in the United States. All manufacturing partners adhere to Current Good Manufacturing Practices (cGMP), ensuring consistent quality and purity across every batch. Domestic manufacturing means shorter supply chains, better quality oversight, and reliable access for US-based researchers.

Unreconstituted (lyophilized/powder form) peptides should be stored at -20°C to -80°C (freezer) for long-term storage. For short-term storage (up to 3 months), refrigeration at 2-8°C is acceptable. Keep peptides in their original sealed vials, protected from light and moisture. Always allow vials to reach room temperature before opening to prevent condensation.

After reconstitution with bacteriostatic water, most peptides remain stable for 30-60 days when stored at 2-8°C (refrigerator). Some peptides may have shorter or longer stability periods – refer to the specific product page for detailed storage guidelines. Always use sterile technique during reconstitution and avoid freeze-thaw cycles, which can degrade peptide structure.

All orders ship within 12-24 hours from time of placement Monday through Saturday. We use expedited shipping methods with cold chain packaging to ensure peptides arrive in optimal condition. Domestic US orders typically arrive within 2-4 business days depending on your location. You’ll receive a tracking number via email as soon as your order ships.

We accept multiple payment methods for your convenience:

• Credit/Debit Cards
• Venmo
• Cash App
• Zelle
• eCheck
• Cryptocurrency (select options)

All transactions are processed securely. For Venmo, Cash App, and Zelle orders, you’ll receive our current payment accounts to send to on the order confirmation page.

No. All products sold by Peptides.GG are strictly for laboratory research purposes only. Our peptides are not intended for human consumption, medical use, diagnosis, or treatment of any condition. They are research-grade compounds intended for qualified researchers conducting approved scientific studies.

Researchers are responsible for obtaining any necessary institutional approvals (such as IRB or IACUC protocols) before conducting studies with our products.

No special license is required to purchase research peptides from Peptides.GG. However, all customers must:

• Be 18 years of age or older
• Acknowledge that products are for research use only
• Agree to use products in compliance with applicable federal, state, and local laws
• Not use products for human consumption or medical purposes

Orders are reviewed to verify appropriate research intent, and we maintain detailed records as required by law.

Due to federal and state regulations governing the sale of research peptides, returns are not permitted under any circumstances. All sales are final once the order has been processed and shipped.

Exception for Shipping Errors:

If your order arrives with incorrect items or products that differ from what was ordered, we will make it right. In these cases:

1. Contact us immediately at [email protected] with your order number
2. Provide photos showing the items received
3. Describe the discrepancy between what was ordered and what arrived

We will promptly ship a replacement of your original order at no additional cost. Our commitment is to ensure you receive exactly what you ordered, maintaining the highest standards of accuracy in fulfillment.

Please verify your order details carefully before completing checkout, as we cannot accept returns for buyer’s remorse, incorrect selections, or changes of mind.