Question 1

What does 'research use only' actually mean?

Accepted Answer

Research use only is a labelling category, not a safety verdict. No regulator has assessed the material for human use. US and EU law judge a product by its intended use, so the label does not change what a product legally is, and it guarantees nothing about purity.

Question 2

How can you tell if a peptide vendor is legitimate?

Accepted Answer

Legitimacy signals include a bulk substance made at an FDA-registered establishment, a valid certificate of analysis, and, in the EU, a manufacturer listed in EudraGMDP. None of this is verified by the seller's own label. Research use only labelling has no bearing on legitimacy and does not exempt a seller from enforcement.

Question 3

Is BPC-157 safe?

Accepted Answer

BPC-157 has not completed a human safety trial. FDA's May 2026 safety review identified only five small human studies, with no reported serious adverse events but also no adequate safety monitoring or chronic-use data. FDA's own conclusion was that evidence weighs against clearing it for compounding. The honest answer is unknown, not safe or dangerous.

Question 4

Is BPC-157 legal in the US and the EU?

Accepted Answer

BPC-157 has no FDA drug approval and, as of September 2026, is not on FDA's 503A compounding bulks list, though an advisory committee has recommended adding it. It is not a DEA-scheduled controlled substance. In the EU, no marketing authorisation or registered clinical trial exists. Selling it labelled research use only for human use does not change any of this.

Question 5

How do you read a certificate of analysis?

Accepted Answer

A certificate of analysis typically reports HPLC purity, mass-spectrometry identity, and sometimes endotoxin testing, three separate measurements. None of these results mean anything without a validated method behind them, covering accuracy, precision and specificity. A certificate that omits method, reference standard, or contamination data is reporting less than a full quality picture.

Question 6

Is compounded semaglutide the same as Ozempic?

Accepted Answer

Ozempic is a specific approved product made by Novo Nordisk; approval attaches to that product, not to the semaglutide molecule generally. FDA's shortage-based legal basis for compounding semaglutide ended 22 April 2025. Compounded versions may use different salt forms that FDA calls different active ingredients, and FDA has documented real dosing errors and warned sellers marketing semaglutide products outside this framework.

Question 7

Is pentadeca arginate the same as BPC-157?

Accepted Answer

As of September 2026, no. Pentadeca arginate is a name sellers and compounders use for a chemically modified BPC-157, with an added arginine salt claimed to improve stability. No peer-reviewed study of pentadeca arginate itself exists, in people or in animals. BPC-157 has no completed randomized human trial either.

Question 8

Is TB-500 the same as thymosin beta-4?

Accepted Answer

As of September 2026, not exactly. TB-500 is a seller's name for thymosin beta-4 or a piece of it, with no agreed chemical identity. Thymosin beta-4 is the natural protein, and a developer's lab-made version went through human trials. No human trial has tested anything sold as TB-500.

Question 9

Melanotan II vs Scenesse: which one is approved?

Accepted Answer

As of September 2026, Scenesse. It is the brand name of afamelanotide, an approved medicine in the US and the EU for adults with EPP, a rare disorder of painful skin reactions to light. Melanotan II has never been approved by the FDA or the EMA.

Direct answers, with the sources attached.