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Research-grade materials for qualified laboratory use · Documentation available by lot
PK Research Labs The King's Standard in Research
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RETURNS & REFUNDS

Returns & Refunds

PK Research Labs returns and refunds policy: eligibility windows, non-returnable items, damaged-item handling, and how approved refunds are fully processed.

Last updated August 9, 2026.

If something’s wrong with your order, we want to make it right — and we’d rather you know exactly what to expect than find out at the worst possible moment. This policy explains when a return or refund may be available, what’s excluded, and how to start the process. Because our products are research materials with specific storage and integrity requirements, our return policy is narrower than a typical retail policy.

Eligibility

To be considered for a return, a request must generally meet the following conditions:

  • The request is made within 14 calendar days of delivery.
  • The item is unopened, in its original packaging, and has not been used.
  • The item’s storage and handling has not been compromised (for example, a refrigerated item that was not kept refrigerated is not eligible).
  • You can provide the order number and, where applicable, the lot number of the item.

Non-Returnable Items

The following are not eligible for return or refund except where the item arrived damaged, defective, or incorrect due to our error:

  • Any product that has been opened, reconstituted, or used.
  • Products whose storage requirements (such as refrigeration) were not maintained after delivery.
  • Sale, clearance, or promotional items explicitly marked as final sale at the time of purchase.
  • Gift cards or promotional credits.

Damaged, Defective, or Incorrect Items

If an order arrives damaged, defective, or does not match what you ordered, contact support within 7 days of delivery with your order number and photos of the item and packaging. We will review the report and, where confirmed, arrange a replacement or refund at no additional cost to you.

How to Start a Return

  1. Contact support through the Contact page with your order number and the reason for the return request.
  2. Our team will confirm eligibility and, if approved, provide return instructions.
  3. Ship the item back in its original packaging as instructed. Return shipping costs are the responsibility of the customer unless the return is due to our error.
  4. Once the returned item is received and inspected, we will notify you of the outcome.

How Refunds Are Processed

Approved refunds are issued to the original payment method used at checkout. Please allow standard processing time on our end plus your payment provider’s posting time for the refund to appear on your statement. Shipping charges are refunded only when the return is due to our error (damaged, defective, or incorrect item).

Order Cancellations

Orders may be canceled for a full refund only if the request is received before the order enters fulfillment. Once an order has shipped, it is subject to this Returns & Refunds Policy rather than cancellation.

Questions

Not sure if your order qualifies? Contact us through the Contact page with your order number, and we’ll help you sort it out.

Ready to start a return?

Contact our support team with your order number and we'll walk you through it.

Contact Support