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Last updated: May 1, 2026
Orders are processed Monday through Friday, excluding U.S. federal holidays. Most orders are processed within 1–2 business days of payment confirmation. Orders placed before 1:00 PM Eastern Time on a business day typically ship the same day, subject to inventory availability and order volume.
Cryptocurrency orders begin processing after the required on-chain confirmations are received. ACH / eDebit orders begin processing after Mercury Invoice payment is confirmed.
We offer the following domestic shipping options:
All shipping costs are calculated at checkout based on the destination address, package weight, and selected shipping method. Delivery times are estimates provided by the carrier and are not guaranteed unless a guaranteed service is selected (e.g., UPS Next Day Air, USPS Priority Mail Express).
Peptech ships all lyophilized (freeze-dried) peptides at ambient temperature. Lyophilized peptides are stable for extended periods at room temperature and do not require cold-chain shipping. For reconstituted or temperature-sensitive products where cold-chain is required, we use insulated packaging with cold packs at no additional charge. Our packaging is designed to maintain appropriate temperatures for 48–72 hours during transit.
Free shipping via USPS Ground Advantage is automatically applied to domestic orders with a subtotal of $200 or more (after discounts, before tax). Free shipping eligibility is displayed during checkout. You may upgrade to a faster method by paying the difference.
We currently ship to select international destinations on a case-by-case basis. International shipping is available for orders over $500 and requires prior approval from our compliance team. International customers are responsible for:
Peptech is not responsible for packages seized, delayed, or returned by customs authorities. International shipping fees are non-refundable. We reserve the right to refuse international orders at our discretion. For international inquiries, contact cs@peptidetech.co.
Once your order ships, you will receive a shipping confirmation email containing your tracking number and a link to the carrier's tracking page. Tracking information typically becomes active within 24 hours of the label being created. You can also view your order status and tracking information by logging into your account.
We do not ship to certain U.S. states or international destinations where the sale, possession, or shipment of research peptides is restricted by local law. Currently, we do not ship to:
Additional states, counties, and municipalities may be restricted and will be flagged at checkout. We also reserve the right to decline orders to APO / FPO / DPO addresses, P.O. boxes in certain jurisdictions, and freight-forwarding addresses.
If your package is marked as delivered but you have not received it:
For lost packages that the carrier confirms as lost in transit, we will offer a replacement shipment or full refund at our discretion.
All shipments are sent in plain, unmarked outer packaging. The return address displays our shipping fulfillment name only (no product or brand references on the exterior). Inner packaging includes climate-controlled materials as appropriate for the products in your order.
For questions about shipping, delivery times, or to report a delivery issue, contact our support team:
Email: cs@peptidetech.co