Shipping Policy
Order processing, carrier service, cold-chain handling, and delivery terms for all domestic and international orders.
Last updated 2026
Processing time
Orders are processed Monday through Friday, excluding U.S. federal holidays. Most orders ship within 1–2 business days of payment confirmation. Orders placed after our daily cutoff, or on a weekend or holiday, are processed the next business day.
Carrier and transit
Domestic orders ship via FedEx 2Day, selected specifically to minimize time-in-transit for temperature-sensitive research material. A tracking number is emailed to the address on file as soon as a label is generated. FedEx 2Day is a transit-time commitment from the carrier, not a guarantee of same-day handoff from our facility.
Shipping rates
- Continental U.S.: $15 flat rate. Free on orders over $199.
- Alaska, Hawaii, and U.S. territories: $25 flat rate.
- International: $35 flat rate.
Rates are calculated at checkout regardless of order weight or volume and cover standard packaging and carrier fees only.
Cold-chain handling
Lyophilized peptide reagents are packed in insulated shipping material with cold packs sized to the order. This packaging is designed to reduce, but not eliminate, thermal fluctuation during transit. Exposure to heat or cold outside the intended storage range is a known risk of any ground or air shipment and cannot be fully controlled once a package leaves our facility.
Customers may add Cold-Pack Protection ($9) at checkout. This add-on guarantees insulated packaging, priority handling ahead of the standard queue, and replacement coverage if the shipment is confirmed compromised in transit.
Damage or exposure reporting
Any suspected damage, thermal exposure, or packaging failure must be reported within 12 hours of delivery, with photo evidence of the package as received, to support@pepgo.org. Reports submitted after this window cannot be evaluated for replacement or refund.
International orders
Customs duties, import taxes, and brokerage fees are the buyer's responsibility and are not included in the shipping rate or product price. Shipments seized, delayed, or returned by customs or import authorities are not eligible for refund. We are not able to alter declared values or contents to accommodate import requirements.
Address accuracy and delivery
It is the buyer's responsibility to provide a complete and accurate shipping address at checkout. We are not able to reroute packages once handed off to the carrier and are not responsible for non-delivery caused by an incorrect or incomplete address.
A carrier-confirmed delivery scan constitutes proof of delivery. We do not ship to P.O. boxes; a physical street address is required for all orders.