Research Labs Review – The FDA Names This Exact Category

What Research Labs Is, and Who It Is Actually For

Research Labs is an online peptide supplier that sells under “research use only” labelling — vials, capsules, nasal sprays and blends, shipped to all 50 states, to anyone who confirms they are 18. Its catalogue includes items named GLP-1 (SG), GLP-2 (TZ) and GLP-3 (RT), from $69.99, alongside BPC-157, TB-500, cagrilintide, MK-677 and tesofensine.

Officially it is for laboratory researchers. Its affiliate listing targets Weight Loss, Fitness and Anti-Aging audiences. Those two statements cannot both be the whole truth, and the gap between them is what this review is about.

This article is informational only and is not medical advice. It contains no dosing, preparation or administration guidance, deliberately. Speak to a licensed clinician before starting or changing any treatment. All details were checked on 8 August 2026.

The FDA Names This Exact Category

Most reviews have to reason towards a regulatory view. Here the FDA has already written one, and it describes this business model with precision.

That is not us characterising a grey area. That is the regulator describing a specific practice — selling those three molecules under a research label — and telling consumers not to buy.

The FDA separately states that retatrutide and cagrilintide cannot be used in compounding under federal law, and that it has warned telehealth companies, API distributors and outsourcing facilities in connection with retatrutide. Research Labs sells cagrilintide by name, and a cagrilintide blend.

We should be precise about what this does and does not establish. We have found no enforcement action against Research Labs specifically, and we are not asserting one exists. What we are saying is that the category the FDA describes and the category this company operates in appear to be the same category.

Decoding GLP-1 (SG), GLP-2 (TZ) and GLP-3 (RT)

The products are not sold under drug names. They are sold under initialisms, and working out what they are is the first thing a buyer should do.

We should show our working, because this is inference rather than a label we read. The initialisms fit; the sequence fits; and the decisive corroboration is that they sell a “Cagrilintide | GLP-1 (SG)” blend. Cagrilintide combined with semaglutide is a real, named investigational combination. That specific pairing existing in the catalogue is very hard to explain if “SG” is not semaglutide.

Notice what the naming convention achieves. Someone who already knows what they are looking for finds it immediately. The words “semaglutide,” “tirzepatide” and “retatrutide” — the three the FDA names in its warning — do not appear on the product tiles. Even the certificate of analysis we read labels the analyte “GLP-1 (S)” rather than writing the drug name out.

There Is No Such Thing as GLP-3

This is worth its own section, because the company’s entire pitch is that it serves “the scientific community” with “rigorous” standards.

• GLP-2 is a real and entirely separate hormone. Glucagon-like peptide-2 is a distinct molecule with its own receptor and its own approved analogue used in short bowel syndrome. Tirzepatide has nothing to do with it — tirzepatide is a GIP and GLP-1 receptor dual agonist.
• “GLP-3” does not exist. There is no GLP-3 hormone and no GLP-3 receptor. Retatrutide is a triple agonist at the GIP, GLP-1 and glucagon receptors.

A supplier genuinely selling to researchers would be corrected on this within a week, because the people it claims to serve would notice immediately. That it survives as a product name tells you who is actually buying.

The Contradiction Sits Inside Their Own Documents

We do not need outside evidence to make this point. Research Labs’ own materials contradict each other, and you can check every line.

The terms of service say:

Now set that against what is in the catalogue and the paperwork:

Take the capsule first, because it is the cleanest. In-vitro means in glassware — cells in a dish. You cannot administer a capsule to a cell culture. A capsule has precisely one function, and the terms of service forbid it by name.

Then the certificate. The document Research Labs commissioned and published to prove its quality contains the phrase “injectable peptides may include acceptable salts, sugars, or buffering agents.” The company’s own third-party laboratory paperwork calls the product injectable, while the terms of service say you must not inject it.

We will be fair about endotoxin testing: endotoxin genuinely does matter for cell culture work, so testing for it is not by itself proof of anything. But a per-millilitre endotoxin limit under the USP chapter used for injectable products, on a certificate that calls the material injectable, is not a cell-culture document.

And no laboratory has ever ordered a reagent called “Wolverine.”

Credit Where It Is Due: The Certificates Are Real

We went looking for the certificates expecting the usual — a stock image, a broken link, or a page of claims with nothing behind it. That is not what we found, and the finding deserves reporting properly.

Research Labs publishes an index of lab reports covering 34 individual peptides plus blends, with downloadable PDF certificates carrying lot numbers. We downloaded one — a GLP-1 5mg vial, lot 26050441 — and read it.

Identity was confirmed by retention time concordance against a certified reference standard per USP <621>. The certificate was dated, lot-numbered, referenced ISO/IEC 17025:2017, and was signed by a named laboratory director.

Two honest caveats. We verified one certificate for one lot; we cannot tell you the vial you receive corresponds to it. And a certificate proves what a sample contained, not that the product is safe to use — purity and legality are different questions, and a 99% pure unapproved drug with no prescribing clinician is still an unapproved drug with no prescribing clinician.

Not a Pharmacy, and They Say So

The site footer carries a disclaimer that is more informative than it probably intends to be, and it appears on every page.

Sections 503A and 503B are the two lawful routes by which a non-approved drug can legitimately reach a patient in the United States. Research Labs states it is neither.

Read that as the company’s own summary of what you are not getting: no pharmacy, no pharmacist, no prescription, no clinician assessing whether this is appropriate for you, no screening for contraindications, no dosing supervision, no adverse event pathway, and no professional body with jurisdiction if it goes wrong.

It is a chemical supplier, exactly as it says. The disclaimer is accurate. It is simply describing an arrangement that has no place in a medical decision.

Pricing, Shipping and What You Actually Get

Prices are per item, not a subscription — starting prices as listed on 8 August 2026.

Shipping: two-day air is free over $150, otherwise $14.99 flat, with overnight at $38.71. All 50 states, shipped from a US facility, orders before 2pm ET processed same day, insulated packaging with cold packs. The company says lyophilised peptides are stable at room temperature in transit and should be refrigerated on receipt.

The brief we were given asks for a realistic all-in monthly cost, and we are declining to calculate one. Turning a vial size into a monthly figure requires assuming a dose, and publishing an assumed dose for an unapproved drug with no prescriber involved is exactly the “sold directly to consumers for human use with dosing instructions” behaviour the FDA describes. The per-item prices are above; we are not doing the arithmetic that turns them into a regimen.

The Refund Ground You Cannot Use

The refund policy, last updated 1 February 2026, is clearer than most. Refunds within 14 days of delivery for damaged or defective goods, incorrect items, orders lost in transit after carrier investigation, and products not meeting the advertised purity of at least 99%. Processing takes 5 to 7 business days.

Non-refundable: products that have been “opened, reconstituted, or used.”

So the purity guarantee is effectively self-certifying: the only purity evidence in play is the company’s own certificate, which says it passes. The guarantee covers the failure you cannot demonstrate without voiding it.

In fairness, this is not unique to Research Labs — it is how nearly every sealed-goods refund policy works, and there are real reasons a supplier will not take back opened vials. It is worth understanding rather than being outraged by. But it does mean the headline guarantee protects the seller more than the buyer.

The terms also cap liability at the amount paid for the product, and require you to indemnify the company. If something goes badly wrong, the contractual ceiling on your recovery is the price of the vial.

Eligibility: Being Eighteen

For a business that describes its customers as researchers, the qualification requirement is worth quoting exactly. The terms say you must be “at least 18 years of age and legally able to enter into binding contracts” — and that is the whole of it.

There is no requirement to hold a research credential, work at an institution, or supply a protocol. The company “reserves the right to... request proof of age or qualification” — a right reserved, not a check performed.

Compare that to how genuine research supply works. Established reagent suppliers verify institutional accounts and ship to laboratory addresses. Here, the barrier between a member of the public and an unapproved GIP/GLP-1/glucagon triple agonist is a checkbox.

Availability is the United States only, all 50 states, and we are not going to speculate about international ordering.

How It Compares to the Alternatives

The pattern is that Research Labs wins on documentation and loses on everything that protects a person. It publishes better batch paperwork than the compounded telehealth services we have reviewed — and provides none of the clinical infrastructure that makes a prescription drug safe to take.

Better paperwork about the molecule is not a substitute for someone deciding whether you should be taking it.

Who This Is For and Who Should Look Elsewhere

There is a legitimate market here, and we should say so. Laboratories genuinely buy peptides, and a supplier that publishes lot-level HPLC and endotoxin data is a reasonable thing for a qualified researcher to evaluate on price, purity and lead time. If that is you, you already know how to assess a certificate of analysis and none of the rest of this review is aimed at you.

That applies with particular force if you have any history of thyroid C-cell tumours or MEN2, pancreatitis, gallbladder or severe gastrointestinal disease, diabetic retinopathy, or if you are pregnant, trying to conceive or breastfeeding. These are the sorts of contraindications a prescriber screens for — and nobody is screening here. GLP-1 receptor agonists also commonly cause nausea, vomiting, diarrhoea and constipation, and can interact with other medicines.

The honest alternative is unglamorous: talk to a clinician about approved options, check what your insurance covers, look at manufacturer savings programmes, and read our guide to what these medications actually cost before concluding that a research vial is the only route you can afford.

Pros and Cons

Limitations of This Review

Our general web search capability was unavailable for this review, so it is built from the company’s own site, terms, shipping and refund pages, one downloaded certificate of analysis, and the FDA’s published page on unapproved GLP-1 drugs. The regulatory quotations are from the FDA’s own current page, not press coverage.

What that leaves unexamined matters here. We did not review Trustpilot, BBB, Reddit threads, news coverage, state licensing records, or any enforcement database. We have not established that any regulator has acted against this company, and we are not suggesting one has. Treat the absence as unchecked, not clean.

The identification of SG, TZ and RT is our inference, reasoned from the initialisms and the cagrilintide blend, not a label we read. We think it is well supported and we have shown the reasoning so you can judge it, but it remains an inference.

We verified one certificate for one lot of one product. We did not test anything ourselves, have not ordered from the company, and cannot tell you that any vial you receive matches the certificate published for it.

We have deliberately omitted dosing, reconstitution and administration information — including declining to convert vial sizes into monthly costs — because publishing it would do the precise thing the FDA warns about. Prices and policies were current on 8 August 2026 and change.

Nothing here is medical advice. We are not competent to tell you what treatment is right for you, and this page should not be used as a substitute for a licensed clinician.

Frequently Asked Questions

Verdict

We earn 25% if you buy through this page, and we are telling you not to.

Research Labs does something genuinely well. Its certificates of analysis are real — lot-numbered, method-specified, endotoxin-tested, signed, and consistent with the purity it advertises. We went looking for a fake and found a real one, and that is more than several regulated compounded providers we have reviewed can say.

But the paperwork is not the problem, and it was never going to solve the problem. The FDA has written about this exact model — unapproved semaglutide, tirzepatide and retatrutide labelled “for research purposes,” sold to consumers — and its instruction is that consumers “not purchase these products.”

And the company’s own documents will not hold the story together. The terms of service forbid ingestion, injection and topical application; the catalogue sells capsules and nasal sprays; the certificate of analysis calls the contents “injectable peptides.” The products carry receptor names that are pharmacologically wrong, including one — “GLP-3” — for a receptor that does not exist. A blend is called “Wolverine.” The only qualification to buy is being 18.

“Research use only” is doing a job here, and it is not a scientific job.

If you are a qualified researcher, evaluate it as you would any supplier — the documentation is above average and the prices are transparent. If you came here to lose weight, please go and talk to a clinician instead. A 99% pure unapproved drug with nobody deciding whether you should take it, nobody watching how you take it, and a liability cap of one vial is not a cheaper version of treatment. It is the absence of treatment, sold by the milligram.