Terms and Conditions

Last Updated: September 30, 2026

Please read these Terms and Conditions carefully before accessing this website or purchasing products from Double Diamond Peptides LLC. By accessing this website, creating an order, or purchasing products, you agree to these Terms and Conditions.

1. Acceptance of Terms

By accessing or using this website or purchasing products from Double Diamond Peptides LLC (“Double Diamond,” “DD,” “we,” “us,” or “our”), you acknowledge that you have read, understood, and agree to be bound by these Terms and Conditions, our Privacy Policy, Research Use Policy, and other policies referenced on this website.

If you do not agree with these terms, you should not use this website or purchase products from Double Diamond Peptides LLC.

2. Age Requirement

You must be at least 21 years of age to access restricted portions of this website or purchase products from Double Diamond Peptides LLC.

By entering the website and placing an order, you represent and warrant that you are at least 21 years of age.

Double Diamond Peptides LLC reserves the right to refuse or cancel an order if age or eligibility requirements are not satisfied.

3. Research Use Only

Products offered by Double Diamond Peptides LLC are intended exclusively for laboratory research purposes.

Products are:

  • Not for human use or consumption.
  • Not for veterinary use.
  • Not intended for diagnostic purposes.
  • Not intended for therapeutic purposes.
  • Not intended to prevent, treat, cure, or mitigate any disease or medical condition.

Double Diamond Peptides LLC makes no representation that its products are approved or intended for any human, veterinary, diagnostic, or therapeutic application.

Purchasing a product from Double Diamond Peptides LLC does not authorize its use for any purpose inconsistent with its labeling or stated research-use restrictions.

4. Purchaser Representations and Responsibilities

By purchasing from Double Diamond Peptides LLC, you represent and acknowledge that you are:

  • At least 21 years of age.
  • You are purchasing the products exclusively for lawful laboratory research purposes.
  • You understand the research-use restrictions applicable to the products purchased.
  • You will not use the products for human or veterinary purposes.
  • You are responsible for the lawful possession, handling, storage, transportation, and use of the products.
  • You will comply with all applicable federal, state, and local laws and regulations.

Double Diamond Peptides LLC reserves the right to refuse, cancel, limit, or otherwise decline an order when we reasonably believe an order is inconsistent with these Terms, our Research Use Policy, applicable law, or our compliance requirements.

5. No Medical, Diagnostic, or Therapeutic Claims

Nothing appearing on this website—including product descriptions, testing information, educational material, articles, graphics, customer communications, or other content—is intended to constitute medical advice or a recommendation regarding diagnosis, treatment, prevention, or therapy.

Double Diamond Peptides LLC does not provide medical advice.

References to scientific literature, research compounds, or laboratory applications are provided for informational or research-related purposes and should not be interpreted as representations regarding the safety, efficacy, or suitability of any product for human or veterinary use.

6. Product Information and Testing

Double Diamond Peptides LLC endeavors to provide accurate product descriptions, quantities, specifications, and available testing information.

Where applicable, products may be accompanied by or associated with batch-specific or third-party testing documentation.

Testing documentation and product information describe the applicable sample or batch and do not constitute a representation that a product is suitable for human, veterinary, diagnostic, or therapeutic use.

Product images are provided for identification and presentation purposes. Packaging, labeling, appearance, or other non-material characteristics may change without notice.

7. Orders and Order Acceptance

Submitting an order does not constitute final acceptance of that order by Double Diamond Peptides LLC.

We reserve the right to review, decline, limit, or cancel an order for reasons including, but not limited to:

  • Product availability.
  • Suspected fraud or unauthorized payment activity.
  • Pricing or listing errors.
  • Compliance concerns.
  • Violation of these Terms or the Research Use Policy.
  • Orders that reasonably appear inconsistent with laboratory research use.

If payment has been collected for an order that Double Diamond Peptides LLC subsequently declines or cancels, the applicable amount will be refunded as appropriate.

8. Pricing and Payment

Prices are displayed in U.S. dollars unless otherwise indicated and may change without notice.

Customers are responsible for applicable charges disclosed during checkout, including shipping and taxes where required.

By submitting payment information, you represent that you are authorized to use the selected payment method and authorize the applicable charges associated with your order.

Payment processing may be provided by independent third-party payment processors and may be subject to their respective terms, policies, and verification requirements.

9. Shipping and Delivery

Orders are typically processed and fulfilled within 2–5 business days after order placement, excluding weekends, holidays, and items identified as backordered.

Backordered products may require additional processing time. When applicable, customers may be notified of material delays or provided with updated fulfillment information.

Shipping and delivery estimates are provided for convenience and are not guaranteed.

Delivery times after an order has been transferred to the shipping carrier may vary due to carrier operations, destination, weather, service interruptions, or other circumstances outside the reasonable control of Double Diamond Peptides LLC.

Customers are responsible for providing complete and accurate shipping information during checkout.

Double Diamond Peptides LLC is not responsible for delays or delivery problems caused by incorrect or incomplete information supplied by the purchaser.

If a shipment is lost or arrives damaged, the purchaser should contact Double Diamond Peptides LLC promptly so the matter can be reviewed and, where appropriate, assistance with the carrier or another resolution can be provided.

10. Returns, Refunds, and Cancellations

Due to the nature of the products offered by Double Diamond Peptides LLC, all sales are final.

Double DiamondPeptides LLC does not accept returns or exchanges.

Customers are responsible for reviewing their orders carefully before completing their purchase. Once an order has entered processing or fulfillment, it may not be canceled or modified.

If an order arrives damaged, defective, or materially different from the item ordered, the purchaser must contact Double Diamond Peptides LLC promptly after delivery.

Double Diamond Peptides LLC will review the circumstances and, when appropriate, may provide a replacement or other resolution at its discretion, subject to applicable law. Nothing in this policy limits rights or remedies that cannot lawfully be excluded.

11. Compliance With Laws

The purchaser is responsible for determining whether the purchase, possession, handling, storage, transportation, and intended research use of a product are permitted under the laws and regulations applicable to the purchaser.

Availability of a product on this website does not constitute a representation by Double Diamond Peptides LLC that the product may lawfully be purchased, possessed, or used in every jurisdiction.

Double Diamond Peptides LLC reserves the right to restrict sales or shipments to particular persons, locations, or jurisdictions when necessary for legal, regulatory, compliance, or business reasons.

12. Assumption of Risk and Responsibility

Research compounds may require specialized knowledge, facilities, equipment, storage, and handling procedures.

By purchasing products from Double Diamond Peptides LLC, the purchaser acknowledges and agrees that the purchase, possession, handling, storage, transportation, and research use of the products are undertaken at the purchaser’s own risk and responsibility.

The purchaser is responsible for implementing appropriate laboratory practices, safeguards, storage procedures, and disposal procedures appropriate to the materials involved.

This provision does not exclude or limit liability to the extent such liability cannot lawfully be excluded or limited.

13. Disclaimer of Warranties

To the maximum extent permitted by applicable law, this website and its content are provided on an “as available” basis.

Except for representations expressly made by Double Diamond Peptides LLC or warranties that cannot legally be excluded, Double Diamond Peptides LLC disclaims warranties regarding the website or products, whether express or implied, including implied warranties to the extent permitted by applicable law.

Nothing in these Terms creates any representation or warranty that a research product is suitable for human, veterinary, diagnostic, or therapeutic use.

14. Limitation of Liability

To the maximum extent permitted by applicable law, Double Diamond Peptides LLC and its owners, officers, employees, contractors, and agents will not be liable for indirect, incidental, special, consequential, or punitive damages arising from or relating to use of the website or products.

To the maximum extent permitted by applicable law, Double Diamond Peptides LLC’s aggregate liability arising from a particular purchase will not exceed the amount actually paid to Double Diamond Peptides LLC for the product giving rise to the claim.

These limitations do not apply where liability cannot lawfully be excluded or limited.

15. Indemnification

To the extent permitted by applicable law, you agree to indemnify and hold harmless Double Diamond Peptides LLC and its owners, officers, employees, contractors, and agents from third-party claims, damages, liabilities, costs, and reasonable expenses arising from your unlawful use of products, material violation of these Terms, or use of products contrary to their stated research-use restrictions.

16. Intellectual Property

The Double Diamond Peptides name, logos, branding, graphics, product imagery, website design, written content, and other proprietary materials are owned by or licensed to Vanta Peptides LLC unless otherwise indicated.

Nothing in these Terms grants permission to reproduce, distribute, modify, commercially exploit, or otherwise use Double Diamond Peptides LLC intellectual property except as permitted by applicable law or with prior written authorization.

17. Privacy

Collection and use of personal information through this website are governed by our Privacy Policy.

By using this website, you acknowledge that information may be processed as described in that policy and as reasonably necessary to operate the website, process transactions, prevent fraud, fulfill orders, and comply with legal obligations.

18. Changes to These Terms

Double Diamond Peptides LLC may update these Terms and Conditions from time to time.

Changes will become effective when the revised Terms are posted to this website unless otherwise stated or required by applicable law.

The “Last Updated” date at the beginning of this page identifies the most recent revision.

19. Severability

If any provision of these Terms is determined to be invalid, unlawful, or unenforceable, that provision will be enforced to the maximum extent permitted by law, and the remaining provisions will remain in effect.

20. Governing Law

These Terms and Conditions and any dispute arising out of or relating to this website, an order, or a transaction with Double Diamond Peptides LLC shall be governed by and construed in accordance with the laws of the State of Washington, without regard to its conflict-of-law principles, except where applicable law requires otherwise.

21. Contact Information

Questions regarding these Terms and Conditions, an order, or Double Diamond Peptides LLC policies may be submitted through the Contact page on this website.