Returns
IsoPep Sciences accepts returns and issues refunds for defective, damaged, or incorrect products only. We do not accept returns for change of mind, ordering errors, or refused deliveries. This policy is in place to ensure product integrity, proper storage conditions, and compliance with laboratory handling standards. For details on how every batch is verified before it leaves our facility, see the IsoPep Sciences Standard.
If your order arrives damaged, defective, or incorrect, you must notify us within 30 days of delivery at support@isopepsciences.com. For fastest resolution, we recommend reporting issues within 48 hours of receipt. Please include:
- Order number
- Description of the issue
- Clear photographic documentation (packaging and product)
Approved claims qualify for a full replacement or refund. There is no cost to the customer and no return shipping is required. We do not charge restocking fees on any approved claim. For shipment specific timelines and carrier information, please review our Shipping Policy.
Refunds
Refunds are only issued in the following circumstances:
If you reach us before your order leaves our facility, we will cancel and refund in full.
Photo evidence submitted within 48 hours of delivery qualifies for refund or reshipment.
If we shipped the wrong product, we will refund or send the correct item at no cost to you.
All refunds are processed back to the original method of payment within 3 to 5 business days of approval. There is no restocking fee and no return shipping cost to the customer. You can confirm what we sent by reviewing the Certificate of Analysis for your batch.
Order Cancellations
Orders may be canceled prior to shipment by contacting us immediately at support@isopepsciences.com. Once an order has shipped, it cannot be canceled.
Because we process orders quickly — often the same business day for orders placed before 2:00 PM EST — we recommend reaching out as soon as possible. See our Shipping Policy for full processing and dispatch timelines.
Non-Returnable Items
All peptide and small-molecule research materials are non-returnable due to quality-control and laboratory safety standards. Once a vial leaves our controlled storage environment, we cannot reintroduce it to inventory regardless of whether the seal is intact.
For the legal terms governing all sales, please refer to our Terms of Service.