Frequently Asked Questions

All products sold by Mulholland Labs are intended for laboratory research use only. They are not intended for human consumption, veterinary use, or diagnostic/therapeutic purposes.

Most compounds are supplied as lyophilized (freeze-dried) powder in sealed vials. Some products, such as Semax, are available in nasal solution form. The specific form is listed on each product page.

Our minimum release specification is 98% purity as determined by HPLC analysis. Most lots test above 99%. The exact purity for each lot is published in its Certificate of Analysis.

Lyophilized powders should be stored at -20C for long-term storage or 2-8C (refrigerated) for short-term use. Avoid repeated freeze-thaw cycles. Reconstituted solutions should be used promptly or aliquoted and frozen.

We currently sell research compounds only. Bacteriostatic water, syringes, and other laboratory supplies should be sourced from appropriate laboratory supply vendors.

Our compounds are tested by independent analytical laboratories specializing in peptide and small molecule analysis. The testing laboratory name is listed on each Certificate of Analysis.

Each lot undergoes HPLC purity analysis and mass spectrometry (MS) identity confirmation at minimum. Results are compiled into a Certificate of Analysis (COA) published for each lot.

Enter the lot number printed on your product label at mulhollandlabs.co/verify. The system will display the full COA including purity, identity confirmation, testing lab, and test date.

Lots must meet a minimum of 98% purity by HPLC and receive positive mass spectrometry identity confirmation before release. Lots that do not meet these criteria are not sold.

If you require testing beyond our standard panel (HPLC purity + MS identity), please contact us at [email protected] to discuss your requirements.

We accept credit/debit cards and USDC (stablecoin). USDC payments receive a discount on the order total. MoonPay is available as a crypto on-ramp for those who do not already hold USDC.

Orders are typically processed within 1-2 business days. Standard shipping within the continental US takes 3-5 business days. Expedited options may be available at checkout.

We currently ship within the United States only. International shipping may be available in the future. Check our Shipping Policy page for the most current information.

Yes. Once your order ships, you will receive a tracking number via email. You can also check order status in your account dashboard.

We accept returns within 30 days of delivery for unopened, sealed products in original condition. Products that have been opened, reconstituted, or consumed are not eligible for return. See our Returns Policy for full details.

Research peptides and compounds are legal to purchase for legitimate research purposes in most US states. Some states have specific restrictions — check our Shipping Policy for the current list. It is the buyer's responsibility to ensure compliance with all applicable local, state, and federal regulations.

Research Use Only (RUO) means the product is manufactured, sold, and intended exclusively for use in laboratory research by qualified personnel. It is not intended for human consumption, clinical use, therapeutic application, or diagnostic procedures.

We require acknowledgment of the research-use-only terms at checkout. We reserve the right to request additional documentation for institutional or bulk orders.

No. Our products are research chemicals sold for laboratory use only. They have not been evaluated or approved by the FDA for any purpose. They are not drugs, supplements, or food products.

Yes. Our privacy practices comply with the California Online Privacy Protection Act (CalOPPA). If CCPA provisions apply, additional rights are detailed in our Privacy Policy.