Shipping Policy

Orders are typically processed within 1–2 business days of payment confirmation. Orders placed after 2:00 PM Pacific, on weekends, or on U.S. federal holidays are processed on the next business day. You will receive an email with tracking information once the order ships.

We ship via USPS and UPS with the following service levels:

Standard (USPS Priority): 2–5 business days in transit. Flat-rate pricing.

Express (UPS 2-Day): 1–2 business days in transit. Recommended for temperature- sensitive orders and during warm-weather months.

Transit times begin the day after the package is picked up by the carrier, not the day the order is placed. Carrier service delays are outside our control.

Lyophilized (freeze-dried) peptides are stable at ambient temperatures for the transit window listed above. Upon receipt, store lyophilized product refrigerated at 2–8°C or frozen at −20°C or below for long-term storage. Once reconstituted, store according to the guidance on the product's Certificate of Analysis (COA). We recommend Express shipping for orders placed during the summer months in hot-weather regions.

We currently ship only within the fifty United States. We do not ship to Canada, the European Union, the United Kingdom, Australia, or any other international destination. We do not ship to APO, FPO, or DPO addresses. Requests to freight-forward to an international address through a domestic reshipper are not supported and orders flagged as freight-forwarded may be canceled.

Once your order ships you will receive a tracking number by email. Tracking is typically available from the carrier within 24 hours of the shipping notification. You can also view tracking on your order history page if you created an account.

It is your responsibility to provide an accurate shipping address. Orders returned to us because of an incorrect address will require the customer to pay reshipment shipping. If a package is delivered to an incorrect address that you provided, we cannot offer a refund or replacement.

If tracking indicates a package was delivered but you did not receive it, first check with neighbors, mailroom staff, and any safe-drop locations. If the package is still missing 48 hours after the delivery scan, contact us. For packages marked lost in transit by the carrier, we will open a claim and either replace the order or issue a refund once the carrier confirms the loss.

Every outbound shipment is labeled “Research Use Only — Not for Human or Animal Consumption.” A packing slip with order details and a Certificate of Analysis (COA) for each lot are included or available for download from your account. Contact us if any documentation is missing.

Shipping question? Reach us through the Contact page.