How to Vet a Peptide Therapy Clinic: 9 Questions to Ask

Key takeaways

• Nine questions separate a real peptide therapy clinic from a store: who prescribes, which pharmacy, 503A or 503B, whether the menu is legal, which labs, what happens with side effects, the dose in milligrams, the three-month cost, and whether a regulator has acted.
• Five of the answers can be verified by you, for free, in about fifteen minutes: the prescriber's license, the pharmacy's license, an outsourcing facility's FDA inspection record, the legal status of each compound and FDA's warning-letter list.
• The fastest disqualifier is the menu. BPC-157, TB-500, CJC-1295, ipamorelin, MOTS-c, AOD-9604 and compounded tesamorelin cannot come from any licensed US pharmacy in October 2026.
• Most clinics do not volunteer the pharmacy. Two of the twelve telehealth providers in our directory named theirs on their websites, so expect to ask, and treat a refusal as an answer.

To vet a peptide therapy clinic, local or online, ask nine questions before you pay, and check the answers that can be checked: the prescriber's license on your state board's website, the pharmacy's license on your state board of pharmacy's database or FDA's outsourcing-facility list, and every compound on the menu against our legal tracker. A legitimate clinic answers all nine in a few minutes. Whether to choose a local clinic or a telehealth service is covered in the parent guide, peptide therapy near me versus online; what should happen once you book is in what to expect at your first visit to a peptide clinic.

The nine questions

Checking the prescriber

Every state has a medical board, and some, Arizona and California among them, have a separate board for osteopathic physicians, so know whether your clinician is an MD or a DO. The Federation of State Medical Boards keeps a directory linking to each board, with its complaint page (FSMB); FSMB also runs DocInfo, a national physician lookup. Search the board by name and confirm three things: the license is active, it is the type the clinic claims, and there is no public discipline you would want to know about. For a nurse practitioner, use the state board of nursing or Nursys QuickConfirm, a free service that pulls licensure and discipline records for RNs, LPN/VNs and APRNs from participating boards (NCSBN).

For telehealth, the license that counts is the one in the state where you are during the visit, not the company's home state. A clinic that cannot tell you who will sign the prescription has failed question one.

Checking the pharmacy

This is the check that matters most, because the pharmacy makes the product. In 2012 contaminated steroid injections from a single compounding pharmacy caused 749 reported infections in 20 states and 61 deaths, with a median incubation of 47 days before diagnosis (Smith 2013).

State-licensed pharmacies. FDA's BeSafeRx page links to every state board of pharmacy's license database and says that if a pharmacy is not listed, you should not use it; a listed pharmacy should require a prescription, give a US address and phone number, and have a licensed pharmacist to answer questions (FDA BeSafeRx). A pharmacy that ships to you must be licensed in your state as well as its own. For a pharmacy's website, NABP's Safe Site Search shows whether it is accredited or on NABP's Not Recommended list, and a web address ending in .pharmacy means NABP has accredited it; NABP says it has identified more than 40,000 websites that fail its standards or the law (NABP).

Outsourcing facilities. If the clinic says the drug comes from a 503B facility, or hands you a vial from office stock, find the facility on FDA's list. It shows the last inspection date, whether investigators issued a Form FDA 483, any recall, and whether FDA's follow-up is open or closed. Read it with two cautions FDA states itself: a Form 483 records investigators' observations and is not a final finding of a violation, and the table does not include state board actions, which you check separately (FDA 503B list).

Reading the menu

One non-compoundable peptide on a menu tells you how the menu was built. In October 2026 no licensed pharmacy may compound BPC-157, TB-500, KPV, MOTS-c, epitalon, semax, CJC-1295, ipamorelin, AOD-9604, thymosin alpha-1, kisspeptin-10 or injectable GHK-Cu; the tracker explains each. Tesamorelin belongs on that list too: it is a biological product, and FDA says such products are not eligible for compounding (FDA notice, 2020), so only brand Egrifta is lawful and "compounded tesamorelin" is a red flag. In our directory of twelve telehealth providers, three listed compounds no pharmacy may make. In our in-depth reviews, Ivim Health named its pharmacies, while Mochi Health and Henry Meds did not, which is the kind of difference the nine questions are designed to surface.

Labs before and after

A clinic should name the tests it orders before the first dose and the date it will repeat them. The panel follows the drug: A1c or fasting glucose and kidney function before a GLP-1, IGF-1 and glucose before sermorelin, blood pressure before PT-141, and two fasting morning testosterone measurements if testosterone is part of the plan. NAD+ and glutathione have no lab that predicts a response, so skipping labs for those is not cutting a corner; skipping them for a GLP-1 or sermorelin is. Ask what result would make the clinician lower the dose or stop, and get the answer before you start. The complete guide has the full labs-by-goal table, and who qualifies for peptide therapy lists the reasons a clinician should say no.

Dose, side effects and what to do if something goes wrong

Ask for the dose in milligrams or micrograms, the concentration on the vial and the syringe units, and check the arithmetic yourself with the peptide calculator or the units guide. In a poison-center series, two of three people harmed by compounded semaglutide injected ten times the intended dose, and one had dosed in milliliters and units instead of milligrams (Lambson 2023). Get the side-effect plan in writing: who to message, what symptoms mean stop, and when to go to urgent care. Our peptide side effects guide covers what to expect by compound.

If something does go wrong, stop and contact the prescriber, report the reaction to FDA's MedWatch program, and file a complaint with the board that licenses the clinician or the pharmacy; the FSMB directory links each medical board's complaint page (FSMB). Before you sign up, search the clinic's and the pharmacy's names on FDA's warning-letter page, which lists company names and issue dates (FDA warning letters).

Bottom line

A peptide therapy clinic earns your money by answering nine questions without hesitation, and five of the answers you can verify yourself before paying: the prescriber's license, the pharmacy's license or FDA record, the legality of each compound and any warning letter. The pharmacy check matters most and is the one clinics most often skip. If a clinic will not name its pharmacy, or its menu includes a peptide no pharmacy may make, you have your answer without asking the other seven.

Frequently asked questions

+−How do I know if a peptide clinic is legit?

Ask for three names and check them yourself: the prescriber (look up the license on your state board's website), the dispensing pharmacy (look it up on your state board of pharmacy's database, or on FDA's outsourcing-facility list if it is a 503B facility), and every compound on the menu (check it against our legal tracker). A legitimate clinic gives all three in a minute; a menu with BPC-157 or TB-500 answers the question on its own.

+−What is the most trustworthy peptide company?

Trust is not a brand. The trustworthy option is whichever clinic lets you verify the prescriber's license, names a licensed pharmacy, prescribes only compounds a pharmacy may legally make, orders labs and tells you the full three-month price. Our directory compares twelve telehealth providers on exactly those points, without ranking them.

+−Are peptide therapy clinics regulated?

Their parts are. State medical, nursing and physician assistant boards license and discipline the prescribers. State boards of pharmacy license compounding pharmacies, and FDA registers and inspects 503B outsourcing facilities. FDA decides which substances may be compounded at all. There is no separate license for a 'peptide clinic', which is why you check the people and the pharmacy rather than the sign.

+−How do I check if a compounding pharmacy is licensed?

Get the pharmacy's exact name and state from the clinic, then search your state board of pharmacy's license database; FDA's BeSafeRx page links to every state's. A pharmacy that ships to you must be licensed in your state as well as its own. If the clinic says the drug comes from an outsourcing facility, find it on FDA's list of registered 503B facilities, which shows its last inspection and any Form 483 or recall.

+−Is it a red flag if a clinic offers BPC-157?

Yes. As of October 2026 no licensed US pharmacy may compound BPC-157, TB-500, CJC-1295, ipamorelin, MOTS-c or AOD-9604, and FDA's July 2026 advisory votes did not change that because FDA has not published a rule. A clinic selling them is supplying research vials, and that tells you how it treats the rules on everything else it sells.

+−What are the risks of taking peptides?

Two kinds. The drug's own side effects, which depend on the compound: nausea and gallbladder problems with GLP-1 drugs, a rise in blood pressure with PT-141, fluid retention and higher glucose with growth hormone secretagogues. And product risks: a contaminated or mislabeled vial, or a dosing error when instructions are in syringe units without milligrams. Vetting the clinic and the pharmacy addresses the second kind.

+−Where do I report a bad reaction to a peptide?

Tell the prescribing clinician first and get care if symptoms are severe. You can also report the reaction to FDA's MedWatch program, and report a clinician or pharmacy to the state board that licenses it; most state boards take complaints online.

Sources

1. SourceFederation of State Medical Boards. Contact a state medical board (every state's medical and osteopathic boards, with links and complaint pages). Internet Archive snapshot of September 14, 2026, read October 10, 2026. (2026)
2. SourceNational Council of State Boards of Nursing. License verification: Nursys QuickConfirm, a free service for licensure and discipline records of RNs, LPN/VNs and APRNs in participating jurisdictions. Read October 10, 2026. (2026)
3. RegulatoryFDA BeSafeRx. Locate a state-licensed online pharmacy (links to each state board of pharmacy license database). Content current as of November 13, 2024; read October 10, 2026. (2024)
4. SourceNational Association of Boards of Pharmacy. Buy safely: Safe Site Search tool, .pharmacy accreditation and the Not Recommended list. Internet Archive snapshot of September 21, 2026, read October 10, 2026. (2026)
5. RegulatoryFDA. Registered outsourcing facilities under section 503B (last inspection, Form FDA 483, recalls and actions for each facility). Updated as of September 30, 2026; read October 10, 2026. (2026)
6. RegulatoryFDA. Warning letters (searchable list with company name, subject and issue date). Content current as of October 6, 2026; read October 10, 2026. (2026)
7. RegulatoryFDA. Notice to compounders: changes that affect compounding as of March 23, 2020 (biological products deemed licensed are not eligible for the 503A and 503B exemptions). Read October 10, 2026. (2020)
8. StudySmith RM, Schaefer MK, Kainer MA, et al. Fungal infections associated with contaminated methylprednisolone injections. N Engl J Med 2013;369:1598-609. (2013)
9. StudyLambson JE, Flegal SC, Johnson AR. Administration errors of compounded semaglutide reported to a poison control center: case series. J Am Pharm Assoc 2023;63:1643-5. (2023)