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Customer-Selected Independent Testing Credit

Test One Vial.
Receive the Testing Cost and Vial Value Back.

Choose one vial from any current Marsden Research Labs batch and send it to a qualifying independent laboratory of your choice for compound identity and purity testing. After verification, receive store credit for the actual qualifying laboratory charge, up to $110, plus the actual pre-tax price paid for the submitted vial.

You Choose the Batch Select any current in-stock batch with complete batch information. Previous testing or published reports do not prevent another customer from independently testing the same batch.
You Choose the Laboratory Use any identifiable, independent third-party analytical laboratory whose business identity and report can be verified. Compound identity and purity results are required.
Up to $110 Testing Credit Receive store credit for the actual qualifying laboratory charge, up to $110. Testing that costs $110 or less may be fully covered through store credit after approval.
Submitted Vial Value Back Receive additional store credit equal to the actual pre-tax price paid for the one vial purchased and submitted for testing.

Participation is limited to one credited testing-vial purchase per customer, per exact product and batch. The laboratory does not need to appear on our provider list, but its report must be independently verifiable. Credit eligibility does not depend on a favorable result. Each report applies directly to the submitted sample and provides additional independent evidence regarding its associated batch, but it does not guarantee that every vial is identical. Shipping, postage, taxes, rush fees, sample-submission expenses, and unrelated optional laboratory services are excluded. Program terms and requirements apply.

Compare Testing Providers View approximate pricing, available tests, and submission links. View Independent Test Results Browse approved reports by product and exact batch.

Sign In to Choose a Batch

Testing-credit purchases and submitted reports are connected to your Marsden Research Labs account. Sign in or create a research account to view currently available batches and select one customer-chosen testing vial.

Research Account Required Once signed in, you can choose a batch, add one customer-selected testing vial to your cart, and then choose your own qualifying independent laboratory. Sign In or Create Research Account
Independent Testing Credit Program

Program Terms and Eligibility

Review the requirements below before submitting a vial for independent testing and requesting store credit.

Up to $110 Qualifying Laboratory Charge

Receive store credit for the verified qualifying laboratory charge paid, up to $110.

Vial Value Back Submitted Testing Vial

Receive additional store credit equal to the actual pre-tax price paid for one qualifying submitted vial.

90 Days Submission Window

Submit the testing-credit request within 90 days after the laboratory issues the completed report.

Who Is Eligible?

Participation is voluntary. The customer independently selects the product, exact batch, and qualifying independent laboratory.

  • The customer must select one unopened Marsden Research Labs vial from a valid order placed by the person requesting the credit.
  • The applicable Marsden Research Labs order number must be provided.
  • The vial must remain unopened before submission to the independent laboratory.
  • Participation is limited to one credited testing-vial purchase per customer, per exact product and batch.
  • Previous testing or an existing published report does not prevent another customer from independently testing the same product and batch.
  • The same customer may participate again when a new batch number becomes available.
  • All information provided to Marsden Research Labs and the laboratory must be truthful and accurate.

Marsden Research Labs does not preselect the testing vial, reserve a particular batch for submission, or require the use of a specific laboratory.

Required Testing and Documentation

Qualifying testing must include compound identity and purity. Additional analyses may also be included.

  • Optional analyses may include quantity, potency, net peptide content, endotoxin, sterility, bioburden, heavy metals, residual solvents, or other analytical measurements.
  • The report must identify the tested sample, compound, test date, testing methods, and results.
  • The report must contain enough product or batch information to connect it to the qualifying Marsden Research Labs purchase.
  • The completed report must be uploaded or provided through a verifiable laboratory report link.
  • Proof of the qualifying laboratory charge must be provided through an invoice, receipt, order confirmation, or comparable documentation.
  • Testing provided at no charge may still qualify for the submitted vial-value credit when the completed report and a verified $0.00 order confirmation are provided.
How Store Credit Is Calculated
Verified qualifying laboratory charge Up to $110
One qualifying submitted vial Actual pre-tax price paid
Maximum approved store credit Combined verified amount
  • The vial-value credit is based on the actual price paid after discounts, coupons, credits, refunds, or other adjustments.
  • Store credit may be used toward future eligible Marsden Research Labs purchases.
  • Store credit has no cash value and is not transferable.
  • Shipping, postage, taxes, rush fees, sample-submission expenses, and unrelated optional laboratory services are not included.
  • Credit is issued regardless of whether the completed laboratory result is favorable or unfavorable.

Marsden Research Labs may decline duplicate, incomplete, unverifiable, altered, misleading, or otherwise ineligible requests.

Submitting Your Completed Report

Upload the Report

Provide the completed laboratory report or a verifiable report link.

Provide Verification

Submit the Marsden Research Labs order number and proof of the qualifying laboratory charge.

Receive Store Credit

Approved credit is issued after the order, laboratory, report, payment, and program requirements are verified.

The testing-credit request must be submitted within 90 days after the laboratory issues the completed report.

Independent Laboratories and Published Reports

Customers independently select an identifiable, independent third-party analytical laboratory. The laboratory does not need to appear on the Marsden Research Labs provider-resource page, but its business identity and report must be verifiable.

  • Marsden Research Labs does not require a particular laboratory.
  • The provider-resource page is supplied for convenience and does not constitute an endorsement, partnership, sponsorship, or guarantee of laboratory services.
  • Laboratory availability, testing methods, pricing, turnaround times, reporting formats, and publication practices are determined by the selected laboratory.
  • Approved reports or verifiable report links may be displayed publicly by product and exact batch.
  • Multiple approved reports for the same batch may be displayed together as additional independent documentation for that batch.
  • Customer names, email addresses, order details, payment documentation, and store-credit information are not displayed publicly.

Marsden Research Labs may withhold or redact a report containing personal, sensitive, or unverifiable information.

Research Use Only: This program relates exclusively to the analytical evaluation of laboratory research materials. Marsden Research Labs products are intended for laboratory research use only and are not intended for human or veterinary use.