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Refund policy

First Due Biotech LLC
Last Updated: August 14, 2026

First Due Biotech supplies products exclusively for research and laboratory use. Due to the nature, handling requirements, and chain-of-custody considerations associated with research materials, returns generally cannot be accepted once an order has shipped.

1. All Sales Final

Unless otherwise required by applicable law or expressly authorized by First Due Biotech in writing, all sales are final once an order has shipped.

We do not accept returns, exchanges, or provide refunds for:

  • Customer ordering errors

  • Changes of mind after shipment

  • Products that have been opened, used, altered, damaged, or otherwise handled after delivery

  • Products stored or handled contrary to the storage information provided with the product or on our website

  • Products returned without prior written authorization

  • Packages refused or returned to sender for reasons attributable to the customer

Products should not be returned to First Due Biotech unless our support team specifically provides written return instructions.

2. Damaged, Defective, Missing, or Incorrect Orders

Customers must inspect their order promptly upon delivery.

Claims involving damaged products, missing items, incorrect products, or other fulfillment discrepancies must be submitted to support@firstduebiotech.com within 48 hours of confirmed delivery.

Claims should include:

  • Order number

  • Description of the issue

  • Clear photographs of the affected product

  • Photographs of the shipping package and packaging materials when shipping damage is involved

  • Photographs of product labels when applicable

Customers should retain the affected product and all original packaging until the claim has been resolved.

First Due Biotech may request additional photographs or information reasonably necessary to evaluate a claim.

After review of an eligible claim, First Due Biotech may, as appropriate, provide a replacement, store credit, refund, or other remedy at its discretion, subject to applicable law.

3. Shipping, Delivery & Carrier Issues

Customers are responsible for providing a complete and accurate shipping address at checkout.

First Due Biotech is not responsible for delivery problems resulting from:

  • Incorrect or incomplete addresses supplied by the customer

  • Failure to retrieve or accept a delivery

  • Delivery restrictions at the customer's location

  • Packages forwarded after shipment

  • Unauthorized address changes requested directly from the carrier

  • Theft, loss, or damage occurring after confirmed delivery

If a package is lost or damaged while in carrier possession before confirmed delivery, contact support@firstduebiotech.com so we can review the shipment and, when appropriate, assist with a carrier investigation or claim.

Carrier delays do not automatically qualify an order for a refund or replacement.

4. Temperature & Transit Conditions

Research materials may encounter temporary temperature variations during normal transportation.

Customers are responsible for reviewing the storage and handling information provided for each product and transferring delivered materials to appropriate storage promptly after receipt.

Temporary transit conditions, carrier delays, or temperature exposure do not by themselves establish that a product is defective or compromised.

If a customer believes a delivered product has been materially compromised during transit, the issue must be reported within 48 hours of confirmed delivery for review.

5. Order Cancellations & Changes

Cancellation or modification requests must be submitted before an order has been processed for shipment.

We will make reasonable efforts to accommodate requests received before fulfillment; however, cancellation or modification cannot be guaranteed once processing has begun.

Orders that have already shipped cannot be canceled.

6. Returned or Refused Packages

Packages returned to First Due Biotech because of an incorrect address, delivery refusal, failure to retrieve the package, or another circumstance attributable to the customer are not automatically eligible for a refund or replacement.

Any reshipment, replacement, credit, or refund will be evaluated based on the circumstances of the order and applicable law.

Do not return research materials without prior written authorization from First Due Biotech.

7. Unauthorized Returns

First Due Biotech cannot guarantee acceptance, replacement, credit, or refund for products returned without prior written authorization.

Because storage and chain-of-custody conditions cannot be verified after products leave our control, returned research materials generally cannot be placed back into inventory.

8. Payment Disputes & Chargebacks

Customers are encouraged to contact support@firstduebiotech.com regarding an order or payment concern before initiating a payment dispute so that we have an opportunity to investigate and attempt to resolve the matter.

If a chargeback or payment dispute is initiated, First Due Biotech may provide relevant records to the payment processor, card network, bank, or financial institution reviewing the dispute, including:

  • Transaction records

  • Account information

  • Order details

  • Fulfillment records

  • Carrier tracking and delivery information

  • Applicable policy records

  • Customer communications

Fraudulent, materially misleading, or abusive payment disputes may result in cancellation of pending orders, account restrictions, or refusal of future service where permitted by applicable law.

Nothing in this policy limits legitimate payment-dispute, chargeback, or consumer rights provided by applicable law or payment-network rules.

9. Research-Use Products

Products sold by First Due Biotech are supplied for research and laboratory use only.

They are not intended for human consumption, veterinary use, therapeutic use, diagnostic use, or clinical application.

Product eligibility for a refund, replacement, or other remedy is determined by the condition and fulfillment of the product as supplied by First Due Biotech and not by results arising from unauthorized, prohibited, or unintended use.

10. Policy Abuse & Fraud

First Due Biotech reserves the right, to the extent permitted by applicable law, to deny claims or restrict future service where there is reasonable evidence of:

  • Fraud

  • Material misrepresentation

  • Repeated abuse of refund or replacement procedures

  • Manipulation or alteration of products or packaging

  • Unauthorized resale-related claims

  • Abusive payment disputes

11. Relationship to Other Policies

This policy should be read together with the applicable:

  • Terms of Service

  • Shipping Policy

  • Privacy Policy

Nothing in this policy limits rights or remedies that cannot legally be waived.

12. Contact

Questions, order issues, and eligible claims should be submitted to:

First Due Biotech LLC
support@firstduebiotech.com

Please include your order number and sufficient information for us to identify and review the transaction.