Refund & Return Policy
At Precisely Peptides, your satisfaction and confidence come first. Every order is backed by The Precisely Promise.
Last Updated: August 14, 2026
Lyophilized peptides are very resilient to heat, up to 120°F. Out of caution, do not leave delivered peptides outside or in your mailbox for more than a day, to ensure full potency. Our guarantee does not cover peptides left in the heat for extended periods. Please track your shipment and be aware of your delivery date.
What The Precisely Promise covers
Return any unopened, factory-sealed product within 30 days of delivery for a refund of the product price to your original payment method (original shipping charges are not refunded). If any part of the order was paid with store credit, that portion is returned to your store-credit balance rather than to a card or bank. No restocking fee. Return shipping is the customer's responsibility and should be sent via a trackable method — we are not responsible for lost return packages. Start your return from Claims & Returns in My Account — we review within one business day and email your return authorization.
30 days from deliveryEvery peptide we ship carries a Certificate of Analysis from an independent, USA-based, ISO/IEC 17025-accredited laboratory. If you have a product independently tested at a qualified accredited laboratory and it does not meet its COA-stated purity, we will issue a full refund, ship a free replacement, and reimburse your verified testing cost. Submit results within 30 days of delivery.
Submit results within 30 days of deliveryShipping Protection is included free on every order.
Included on every orderIf you receive the wrong item or something is missing, contact us within 7 days of delivery. We ship the correct item free and provide a prepaid return label for any incorrect item — at no cost to you.
7 days from deliveryOpened vials & change-of-mind returns. Because these are research-grade materials supplied in sealed, single-use vials, opened or unsealed vials cannot be returned for change-of-mind reasons — once a seal is broken we cannot verify a vial’s contents or chain of custody. See the 99%+ Peptide Purity Guarantee above for quality concerns on opened peptides. Return shipping for change-of-mind returns is the customer’s responsibility; start your return from Claims & Returns in My Account for a return authorization.
Lost or damaged in transit
These remedies apply to every order through Shipping Protection, included free.
No carrier scan for 14+ days, or carrier-confirmed lost: free reship or full refund — your choice.
Free reship or full refundDamaged in transit: return the product with the prepaid label we provide, then we ship a free replacement — or issue a refund if the item is out of stock or you prefer one.
Replacement or refundCoverage window. Coverage runs from carrier handoff to carrier-confirmed delivery. Post-delivery theft, refused deliveries, and incorrect addresses entered at checkout are not covered.
How to file a claim or return
Log in and open Claims & Returns in My Account, then choose Start a claim or return. For 30-day returns the form lists your eligible orders automatically (completed orders delivered within the last 30 days without an existing return); lost or damaged shipments use the same form. Once a return is approved you’ll receive a return-authorization email with your RMA number and the ship-back address — please use a trackable service. Checked out as a guest, or prefer email? Write to [email protected] with your order number, a description, and photographs where relevant. Approved refunds are processed to the original payment method within 3–5 business days. Store credit is never refunded as money. If any part of an order was paid with store credit, we return that portion to your store-credit balance, where it stays available for a future order; only the amount you paid by card or bank transfer goes back to your original payment method.
Order cancellations
Orders may be cancelled for a full refund any time before they ship.
Research use only. All products are sold for research use only (RUO) and are not for human or veterinary use. The Precisely Promise covers product quality and order fulfillment; it does not modify the RUO terms.
Need to start a return or refund?
Start a claim or return