Compounded tirzepatide

Is a compounded tirzepatide seller legit? Four checks that take ten minutes

The line between a telehealth pharmacy and a gray-market peptide site is bright, and you can find it from your chair: who prescribes, who compounds, who licenses them, and what FDA has already said.

The four checks

None of these requires expertise. Together they separate a clinic from a chemical supplier: a prescription requirement, a named pharmacy, a checkable license, and FDA’s own correspondence. A seller can pass all four and still charge too much — that is what the index is for — but a seller that fails any of them is not a cheaper version of the same thing.

Check 1 — a prescription is required

Tirzepatide is a prescription drug in every US state, however it is made. The legitimate route always runs through a licensed clinician who reviews your history and can decline you — that is step 3 of the process, and it is the step that makes the rest medicine. A site that takes payment and ships with no prescriber involved is selling outside the drug-supply system, and everything downstream of that — identity, sterility, strength, recourse — is outside it too.

Check 2 — the pharmacy is named, and its license is real

The vial comes from a compounding pharmacy, and a seller confident in its supply chain says which one — some name it on the site, most will name it when asked, and the terms pages often list them outright. With a name in hand: every state’s board of pharmacy runs a public license lookup, and the larger facilities that compound in bulk under section 503B appear on FDA’s registered outsourcing facility list, inspection history included. A seller that will not name its pharmacy at all is asking you to take the least checkable part of the product on faith.

Check 3 — the gray-market tells

The sites to walk away from advertise the same molecule with different words: “for research use only” or “not for human consumption” — a label that exists to disclaim selling you medicine while selling you medicine; a certificate of analysis in place of a license, which reports what one sample assayed and says nothing about sterility, dosing accuracy, or who mixed the next batch; no prescriber anywhere in the flow; and payment by wire, crypto or app transfer only — rails with no dispute process. FDA’s BeSafeRx guidance covers the same pattern for online pharmacies generally.

Check 4 — what FDA has already said

FDA writes warning letters to sellers it believes are breaking the law, and the letters are public — but its own search quietly ignores what you type, so checking properly means searching the whole corpus. This site does that for every seller listed: 43 of 386 hold at least one, each attributed only where the letter names the seller’s own domain, and each shown beside the seller’s listing rather than hidden. One caution transfers to any check you run yourself: companies trade under several brands, so screen the entity behind the site, not just the name on it.

What this site checks, so you can skip to the part that is yours

Two of the four run here at scale: every listed seller sells through a prescriber, and every one is screened against FDA’s complete warning-letter index, re-run against a control set before anything publishes. Every price is verified on the seller’s own site and dated. The checks that remain yours are the ones that depend on your order: the pharmacy your prescription is actually routed to, and its license in your state. The full method →

Whether compounded tirzepatide remains legal to sell at all is a separate question with a dated, sourced answer at the legal-status page.