Independent · not a government agency
Every GLP‑1 seller we can find, checked against the public record.
Who is allowed to operate, what a calendar month actually costs, and which sellers the FDA has written to. We publish the source, the arithmetic, and the date we checked it, so you can go and check it yourself.
- sellers reviewed
- 584sellers reviewed
- FDA warning letters on file
- 158FDA warning letters on file
- of those matched to a seller here
- 53of those matched to a seller here
Where the register stands
The six highest-scoring GLP‑1 sellers we track, ranked on score alone. What a seller pays us has no bearing on this order, and the arithmetic behind every score is published.
The federal paper trail
We keep our own index of FDA warning letters sent to GLP‑1 sellers. Letters are matched to a company by name and mailing address, never by a brand that merely looks similar.
A warning letter discloses. It does not disqualify. Only an enforcement action removes a seller from this register.
Dataset checked September 2026
Start here if you do not know what to ask for
Which GLP‑1 should you be asking your doctor about?
Five questions — your BMI band, any conditions you carry, whether you want an injection or a pill. It returns the FDA‑approved options that actually fit, and names the trial behind each one. It asks for no email address.
Take the quiz →Already know the drug? Find a GLP‑1 seller that fits in five questions.
What are you trying to find out?
The register is the core of this site, but it is not all of it. Each door says how much is behind it.
51 states
Find out what your state covers
Medicaid rules, prior-authorization criteria and the coverage carve-outs, state by state.
For exampleTexas
43 matchups
Put two drugs side by side
Trial outcomes, dosing ladders and cost paths compared from the published labels.
For exampleWegovy vs Zepbound
37 ranking boards
See who ranks where
Ranking boards built from our own verified price records, not from a seller's marketing.
For exampleBest semaglutide providers
38 calculators
Work out your own numbers
Calculators for dose ladders, cost per pound, unit conversion and prior-authorization letters.
For exampleCost-per-pound calculator
271 write-ups
Read the evidence
Write-ups anchored to PubMed-indexed primary research, with every citation live-checked.
For exampleWhat happens when you stop
12 drug guides
Understand the drug itself
Guides to every FDA-approved GLP-1, the pipeline behind them, and the conditions they treat.
For exampleZepbound
10 insurers
Find out if insurance will pay
What each major insurer covers, the prior-authorization criteria they apply, and the appeal route when they say no.
For exampleAetna
68 pharmacies
Check the pharmacy filling it
Who actually compounds the semaglutide and tirzepatide sold by telehealth sellers, and what regulators have said about them.
For exampleEmpower Pharmacy
15 explainers
Get the plain-English version
Explainers on side effects, dosing, insurance language and the terms sellers use, without the clinical vocabulary.
For exampleGetting a GLP-1 without insurance
Run the numbers yourself
Nothing here asks for an email.
GLP-1 Cost Per Pound Lost Calculator
Turns a monthly GLP-1 price into what each pound actually costs you, using loss figures from the STEP-1, SURMOUNT-1, ATTAIN-1 and SCALE trials. Free to use.
GLP-1 Prior Authorization Letter Generator
Assembles a prior-authorization letter for Wegovy, Zepbound, Saxenda or Foundayo, written in FDA-label language and carrying citations to the pivotal trials. Free.
Pharmacy Legitimacy Lookup
Runs a compounding pharmacy against five public records: FDA warning letters, openFDA recalls, the Texas state pharmacy license database, the Illinois IDFPR registry, and the FDA's list of registered 503B outsourcing facilities. What comes back is the disclosure rows themselves. There is no score and no algorithm.
The spread
One month of the same compounded molecule, cheapest seller to dearest, across every price this register publishes. The middle of the market sits nearer the floor than most people are quoted.
Compounded semaglutide
579 published prices · 414 sellers
$59 Collectivecheapest
$1,400dearest
Four offers in five fall between $99 and $298. The dearest month on this register costs 24× the cheapest for the same molecule.
Compounded tirzepatide
510 published prices · 379 sellers
$69 Collectivecheapest
$1,400dearest
Four offers in five fall between $149 and $399. The dearest month on this register costs 20× the cheapest for the same molecule.
Recomputed from the register on every build · 584 sellers on file
How we make money
37 of the 584 sellers on this register pay us a commission when a reader signs up through their link. Those rows are grouped first on our tables and every one of them is marked. The rating is worked out from published evidence before any of that, so a seller who pays us can still come out badly.
Read the full disclosure →