Every material in our catalogue is sold for laboratory research. We do not answer questions about using any of it in people or animals. That is not a judgment about the person asking: the same answer goes to everyone, every time. This page explains what we decline, why our answers would matter, and what we are glad to help with instead.
What we don't answer
We don't answer questions about:
- Amounts, schedules or preparation for use in people or animals, including "how much", "how often" and "how do I mix it".
- Effects in people or animals: what a material does, how long it takes, what it feels like, or what to expect.
- Safety in people or animals, including side effects, interactions and who should avoid a material.
- Comparisons with approved medicines, or whether a material is "the same as" one.
- Combinations and goals: "stacks", what to buy for a personal goal, or which material works best for something.
- Questions on someone else's behalf, including for a partner, a client, a group or a pet.
We also don't comment on what other people say about our materials online, in forums or on social media.
Why our answers would matter
Whether a substance is a drug in the eyes of the law depends on what its seller intends it to be used for. That intent is judged from everything the seller says and does, including its replies to customers. FDA's regulation on intended use reads in part:
This objective intent may, for example, be shown by labeling claims, advertising matter, or oral or written statements by such persons or their representatives. Objective intent may be shown, for example, by circumstances in which the article is, with the knowledge of such persons or their representatives, offered or used for a purpose for which it is neither labeled nor advertised.
An answer to a question about use in people would be exactly such a statement. It would also tell anyone reading it what the seller knew about how its material was going to be used. In recent years FDA's warning letters to online peptide sellers have quoted amounts and schedules published by sellers, preparation guides and calculators, "cheat sheets" shared in a seller's community forum, and social media replies to customers. Our FDA enforcement tracker records what those letters cite.
There is also a simpler reason. The materials we sell have not been evaluated for use in people or animals, and we are not clinicians. Any answer we gave would be guesswork presented as advice.
A note on interpretation. How FDA weighs this kind of evidence is a matter of the agency's current interpretation, seen mainly in its warning letters, which it describes as informal and advisory
. That interpretation can change. Our policy does not depend on it: we would decline these questions regardless.
What happens when we receive one
- We reply that we can't help with that question, and point to this page.
- The message is kept with the account or order it relates to, as part of our records.
- Where a message makes clear that material is intended for use in people or animals, we may cancel the related order, decline future orders and close the account.
The same applies to questions sent by email, through the contact form, in an order note or in any other way.
What we can help with
We are glad to help with anything about the materials themselves and about your order:
- Documentation: certificates of analysis, lot IDs, and what the reported figures mean. The certificates of analysis page lists them by lot.
- Analytical questions: identity, chromatographic purity, net peptide content, counter-ions and the methods behind them. The research library covers these in depth.
- Storage and handling of research material in the laboratory: temperature, light, moisture and receipt.
- Orders, payment, shipping and accounts.
- Institutional purchasing: documentation for procurement, and account set-up for organisations.
Use the contact page for any of these.
Frequently asked questions
- I'm only asking out of curiosity. Can you make an exception?
- No. The policy applies to every question of this kind, whatever the reason behind it, so that our answers are always the same.
- Can you point me to someone who will answer?
- No. We don't refer people elsewhere for advice about use in people or animals. Questions about studies involving people or animals belong with the oversight committees and regulatory processes that govern that research at your institution.
- Why was my order cancelled after I sent a question?
- If a message made clear that the material was intended for use in people or animals, we may cancel the related order. We sell for laboratory research only, and we can't knowingly sell for any other purpose.
- Does this mean you think I'm doing something wrong?
- No. It means we answer the same way for everyone. The policy is about what we can say, not about who is asking.
Sources & Further Reading
- 21 CFR 201.128, Meaning of "intended uses".
- Federal Food, Drug, and Cosmetic Act § 201(g)(1); 21 U.S.C. § 321(g)(1).
- Food and Drug Administration. Regulatory Procedures Manual, Chapter 4: Advisory Actions (Warning Letters and Untitled Letters).
- Food and Drug Administration, CDER. Warning letters to online sellers of research-labeled peptides, 2024 to 2026, as listed in the FDA enforcement tracker.
See also
For in vitro laboratory research only. Not for human or veterinary use. This library describes chemistry, analytical methods and published laboratory research; it gives no guidance on use in people or animals.