Frequently asked questions

Every product we sell is intended for laboratory research. It is not a drug, dietary supplement, or medical device, and none of it is approved for human or veterinary use. We do not provide preparation, reconstitution, dosage, or administration guidance of any kind.

Yes. Every lot ships with a batch-specific certificate of analysis showing HPLC purity and mass spectrometry identity confirmation from an independent laboratory. Record the lot number in your methods and retain the documentation.

Our specification is at least 98 percent by HPLC, and most lots test higher. Purity and identity are separate questions, so each lot is also checked by mass spectrometry to confirm the observed mass matches the theoretical mass.

Store lyophilized peptides cold and protected from light. Reconstituted material is far less stable than lyophilized powder. Our storage guide in the research library covers this in more detail.

Orders placed before 2:00 PM CT on a business day are processed the same day. Orders after that, or on weekends and holidays, are processed the next business day. You will get an email with tracking once the order ships. See our shipping policy for full details.

You must be at least 21 years old and acquiring these materials for lawful research purposes. Our terms of service set out the full eligibility requirements.