At Pepsynth Labs, we pride ourselves on providing fast, reliable shipping and top-quality research peptides. Your satisfaction and trust are important to us, and we stand behind the integrity of our products.
If you receive a defective vial, you are eligible for a full refund or replacement within 30 days of your purchase.
Defects may include:
Broken or cracked vials
Leakage or improper sealing
Compromised sterility or contamination
Proof (such as photos or videos) may be requested before approval.
Email: support@pepsynthlabs.com
Once your request is received, we will provide detailed return instructions.
If you receive a damaged or defective product, Pepsynth will cover return shipping costs.
Please use a trackable shipping method to ensure safe delivery.
Refunds are issued to the original payment method after inspection and approval.
Please allow several business days for the refund to appear in your account.
If you experience a shipping-related issue such as a delay, misdelivery, or loss:
A reshipment may be processed 7 business days after the original delivery date.
Reshipments are only approved once the carrier confirms the package’s status.
Orders may be modified or canceled within 1 hour of purchase.
After 1 hour — or once the order has shipped — it cannot be changed or canceled.
We currently ship to U.S. addresses only.
All orders are shipped using reliable carriers such as USPS or FedEx.
Pepsynth Labs is not responsible for delays caused by:
Weather conditions
Carrier operational issues
Other factors beyond our control
Please ensure your shipping address is correct during checkout.
We are not responsible for delivery issues resulting from incorrect or incomplete addresses.
If tracking shows your package as delivered but not received:
Please contact the carrier (USPS or FedEx) directly.
Pepsynth Labs will assist in filing a claim, but we do not accept liability for lost or stolen packages once delivery is confirmed.
Subscribe to receive hand-picked industry studies, new research breakdowns, exclusive product deals, and early access to new compounds. Stay ahead in peptide science - no fluff, just signal.
The products on this website are for legitimate research use only. They are not intended to prevent, treat, or cure any illness or disease and are not intended for human consumption. By accessing this site, you acknowledge that you are at least 21 years of age, understand these terms, and have a legitimate research basis for buying these products
**NOTE:Â All of our compounds are sold individually, and DO NOT include research supplies such as bacteriostatic water or syringes. Most are sold in powder form and require reconstitution with a suitable diluent solution prior to research.
I acknowledge that I am a valid researcher over 21 years of age
