Shipping & Returns Policy

Centennial Peptide Co.
Last Updated: October 2026

Centennial Peptide Co. is committed to accurate fulfillment and timely shipment of research materials. Because of the nature of the materials we supply and our quality-control requirements, all sales are final and returns are not accepted except as specifically described below.

Shipping

Processing Time

Orders placed before 2:00 PM Central Time are generally processed within 24 hours.

Processing times are estimates and may be affected by weekends, holidays, order volume, payment verification, or circumstances outside our control.

Standard Shipping

Centennial Peptide Co. currently ships within the United States.

Standard shipping via carrier rates.

Free Standard Shipping

Orders of $300.00 or more qualify for free standard shipping.

Expedited Shipping

Expedited shipping options are available at an additional charge. Available expedited services and rates will be displayed at checkout based on the order and destination.

Tracking

Tracking information will be provided when available after an order has been processed for shipment.

Customers are responsible for providing a complete and accurate shipping address, monitoring tracking updates, and retrieving packages promptly following delivery.

Returns & Refunds

All Sales Are Final

Due to the nature of our research-use-only materials and our quality-control protocols, all sales are final.

Centennial Peptide Co. does not accept returns of research materials, compounds, or related supplies.

Orders cannot be canceled or modified once they have entered processing.

Exceptions

Centennial Peptide Co. will consider a replacement or store credit in the following verified circumstances:

Incorrect Item
The product received does not match the product ordered.

Damaged in Transit
The shipment or product arrived visibly damaged.

Missing Item
An item included in your order was not present in the delivered package.

Verified claims may result in a replacement or store credit at Centennial Peptide Co.'s discretion. Cash refunds are not issued unless otherwise required by applicable law.

Reporting an Order Issue

Damage, incorrect items, or missing items must be reported to Centennial Peptide Co. within 48 hours of delivery.

Please contact:

[email protected]

Include the following information with your request:

• Your order number

• Tracking number, if applicable

• A brief description of the issue

• Clear photographs of the exterior packaging

• Clear photographs of the contents of the package

• Photographs of the packing slip, if included

• Photographs clearly showing any damage or incorrect items

Centennial Peptide Co. will review the information provided and generally respond within two business days.

Submission of a claim does not guarantee a replacement, store credit, refund, or other resolution.

Lost Packages

If tracking indicates that a package has not been delivered and appears to be lost in transit, contact Centennial Peptide Co. so that we can work with the shipping carrier to investigate the shipment.

Resolution may depend upon the outcome of the carrier's investigation.

Packages Marked Delivered

Centennial Peptide Co. is not responsible for packages that the carrier has confirmed as delivered and that are subsequently lost, misplaced, or stolen.

This includes, but is not limited to, packages lost or stolen from:

• Porches or doorsteps

• Mailrooms

• Apartment or community package areas

• Front desks

• Parcel lockers

• Other designated delivery locations

Customers are responsible for providing a secure delivery location, monitoring tracking updates, and retrieving packages promptly following delivery.

Where available, customers concerned about package security should consider carrier hold services, signature-required delivery, or another secure delivery location.

We Do Not Offer

Centennial Peptide Co. does not provide returns, replacements, exchanges, refunds, or credits for:

• Change of mind or buyer's remorse

• Incorrect products ordered by the customer

• Products that have been opened, altered, reconstituted, or used

• Refused deliveries

• Delays caused solely by the shipping carrier

• Incorrect or incomplete shipping information supplied by the customer

• Packages confirmed as delivered by the carrier and subsequently lost or stolen

This policy does not limit any rights or remedies that cannot legally be waived under applicable law.

Research Materials

All Centennial Peptide Co. materials are offered solely for legitimate research purposes.

Products are not intended for human or veterinary consumption.

Products that have left Centennial Peptide Co.'s controlled fulfillment process cannot be returned to inventory or resold. This is one reason Centennial Peptide Co. maintains an all-sales-final policy.

Our Commitment

Centennial Peptide Co. is committed to accurate order fulfillment, responsible handling of research materials, and clear communication regarding shipping issues.

These policies help maintain the integrity of our fulfillment process while providing a defined process for addressing verified shipping damage, missing items, and fulfillment errors.

Questions About Your Order?

For shipping, fulfillment, or order-related questions, contact:

[email protected]

Please include your order number when contacting us regarding an existing order.

Research Use Only. Not for Human or Veterinary Consumption.