Legal status · United Kingdom
Is FLGR-242 legal in the United Kingdom?
Written by Aaron CuhaReviewed Sep 2026
Direct answer
No. FLGR-242 is not an approved medicine in the United Kingdom. Its legal category is "Unlicensed medicine; supply for human use is unlawful". Nothing that contains it is allowed for any use in people. Vials labeled "for research use only" get no exception: that label does not make them legal to use in people. On the evidence, no completed trial in people is cited on its profile (1 human record with no result or no dose given).
- People given it
- 0
- Found nothing
- 0
Legal category
Unlicensed medicine; supply for human use is unlawful
Banned in sport as part of a banned drug group (WADA S2)
Reviewed Sep 2026. This is a legal category, not legal advice.
A "research use only" label on a vial does not make it legal to use on people.
FLGR-242 in the United Kingdom at a glance
| Legal category | Unlicensed medicine; supply for human use is unlawful |
|---|---|
| Note | Banned in sport as part of a banned drug group (WADA S2) |
| MHRA approval status | Not approved by MHRA |
| Studies in people | 1 of 3 sources on the profile |
| Reviewed | Sep 2026 |
The legal category and note come from the FLGR-242 profile. We checked them against Medicines and Healthcare products Regulatory Agency (MHRA) listings on the reviewed date.
What this means
- 01
No product containing FLGR-242 is approved by MHRA for any use in the United Kingdom. So nothing on sale is allowed for use in people.
- 02
"Research use only" is a label sellers put on. It is not a legal category that allows use in people, and it does not get a product out of medicines law.
- 03
Importing it, supplying it or promoting it for use in people can fall under medicines law in the United Kingdom. This page is general information, not legal advice.
What FLGR-242 is
FLGR-242 is a lab-made piece of follistatin, sold on the gray market since late 2025. It is pitched as a way to trap myostatin and build muscle. There are no published studies, no data on how long it lasts in the body, and no safety data on this molecule.
FLGR-242 is sold as a shortened follistatin protein with a claimed add-on that sticks to albumin, a blood protein. Prices run from a few hundred to several thousand dollars a vial.
How it works: Like follistatin, it is meant to grab myostatin and activins before they reach their receptors on muscle. That takes the brake off muscle building.
Approval history: Not approved; nobody has asked the FDA to test it in people (no IND); sold as a research chemical
How MHRA treats this kind of product
Licenses medicines for sale in the UK. A compound without a licence to be sold (a marketing authorisation) is an unlicensed medicine. The law only lets it reach people through a prescriber, under the specials scheme (unlicensed medicines made for one patient's needs). It cannot be sold as a research product.
The legal category above is how The Longevity Archive reads Medicines and Healthcare products Regulatory Agency listings for FLGR-242 on the reviewed date. It is not a legal opinion. Rules change. Bringing a compound into the country, prescribing it and owning it can each be treated differently. Check with the agency before you act on anything here.
FLGR-242 in sport and the military
Whether FLGR-242 is banned in sport is set by the World Anti-Doping Code and by military rules, not by its legal status in the United Kingdom. Before you compete or get tested, look up FLGR-242 by name on the Prohibited List, or look up a named product in Global DRO. Under the World Anti-Doping Code, category S0 bans, at all times, any drug-like substance that meets two tests. No other section of the List covers it. And no government health regulator anywhere has a current approval for it as a treatment in people. Many substances that are approved somewhere are banned by name in another section. So approval does not mean a substance is allowed in sport.
- WADA Prohibited List
- Global DRO (check a named product)
- USADA (US athletes)
- Operation Supplement Safety (US service members)
The rules you compete or serve under decide this, not this page.
FLGR-242 in other countries
United States
Not approvedNot approved; sold 'for research use only'
Is FLGR-242 legal in the United States?Australia
Not approvedNot approved; on Schedule 4 (a prescription-only list) or limited at import
Is FLGR-242 legal in Australia?Canada
Not approvedNot authorized for sale
Is FLGR-242 legal in Canada?Frequently asked questions
Is FLGR-242 legal in the United Kingdom?
No. FLGR-242 is not an approved medicine in the United Kingdom. Its legal category is "Unlicensed medicine; supply for human use is unlawful". Nothing that contains it is allowed for any use in people. Vials labeled "for research use only" get no exception: that label does not make them legal to use in people. On the evidence, no completed trial in people is cited on its profile (1 human record with no result or no dose given). Note: Banned in sport as part of a banned drug group (WADA S2)
Can I buy FLGR-242 in the United Kingdom?
There is no approved product to buy. In the United Kingdom, FLGR-242 has the legal category "Unlicensed medicine; supply for human use is unlawful". So no licensed pharmacy product exists. Sellers who list it "for research use only" are not selling it for use in people, and that label does not change its legal status. Sellers named on the price pages are ranked by certificate tier, then price, and any affiliate income is disclosed there. Naming a seller is not a recommendation to buy or use anything. Note: Banned in sport as part of a banned drug group (WADA S2)
Is FLGR-242 MHRA approved?
No. In the United Kingdom, FLGR-242 has the legal category "Unlicensed medicine; supply for human use is unlawful". That is not a MHRA approval to sell it. For comparison, its US FDA status is: Not approved; nobody has asked the FDA to test it in people (no IND); sold as a research chemical. On the evidence, no completed trial in people is cited on its profile (1 human record with no result or no dose given).
Related compounds in the United Kingdom
Full research profile
How FLGR-242 works, the studies we cite, FDA status and the full legal summary are all on its compound profile.
FLGR-242 profileThis page is general information about the legal status of FLGR-242 in the United Kingdom, current as of Sep 2026. It is not legal advice. Legal status changes. For your own situation, check with Medicines and Healthcare products Regulatory Agency or ask a lawyer. Educational use only. This database summarizes published research and is not medical advice. Where a dose appears it is a record of what a trial or clinic ran, or what people describe doing, with its source attached. Nothing here is a recommendation for personal use. Sellers named on the price pages are ranked by certificate tier, then price, and any affiliate income is disclosed there. Naming a seller is not a recommendation to buy or use anything.