The vendor landscape
Who actually makes this stuff, who resells it, and why the same vial costs $30 from one site and $90 from another.
Very few peptide vendors make peptides. The synthesis happens at a small number of contract manufacturers, most of them in China, and everyone downstream is buying bulk powder, having it filled into vials, and putting a label on it. The brand you see is a label and a website. What matters is what is behind it.
The four kinds of seller
- Bulk manufacturers. They sell by the gram to businesses. They rarely sell to individuals, and when a site claims to be one and sells single vials, it is not.
- Established resellers. They buy bulk, contract the vialing, test each batch, and publish the results. The good ones have been around for years and their certificates trace to a named independent lab.
- Drop-ship brands. A website, a payment page, and a supplier they have never visited. Their certificate, if there is one, came from the supplier and has never been checked. Most of the market looks like this.
- Telehealth and compounding. For the approved compounds, a prescription route exists and it is the only one with a manufacturing standard behind it. For everything else, it does not.
Why prices vary so much
Bulk peptide is cheap. A vial that retails for $60 can carry a few dollars of actual compound. The price difference between vendors is testing, filling standards, insurance against the payment processor shutting them down, and margin. A very low price is usually a drop-ship brand skipping the first two. A very high one is often a brand rather than a better product.
The useful question is never what does it cost. It is what did they test, who tested it, and can I see it. The next lesson is how to read the answer.