Legal status · United Kingdom
Is Enobosarm legal in the United Kingdom?
No. Enobosarm is not an approved medicine in the United Kingdom; its classification is "Not licensed; sale for human use is unlawful". Nothing containing it is authorized for any use in people. Vials labeled "for research use only" are not exempt: that label does not make human use lawful. Human evidence: Moderate.
Enobosarm in the United Kingdom at a glance
| Classification | Not licensed; sale for human use is unlawful |
|---|---|
| MHRA approval status | Not approved by MHRA |
| Evidence level | Moderate (research strength: Moderate) |
| Reviewed | Sep 2026 |
Classification and note come from the Enobosarm profile, checked against Medicines and Healthcare products Regulatory Agency (MHRA) listings at the reviewed date.
What this means
- 01
No product containing Enobosarm is approved by MHRA for any use in the United Kingdom, so nothing on the market is authorized for people.
- 02
"Research use only" is a vendor label, not a legal category that permits human use. It does not exempt a product from medicines law.
- 03
Importing, supplying or promoting it for human use can fall under medicines legislation in the United Kingdom. This page is general information, not legal advice.
What Enobosarm is
The selective androgen receptor modulator known on the gray market as ostarine, now in formal trials where 3 mg cut lean-mass loss on semaglutide by 71% in adults over 60.
Enobosarm activates the androgen receptor selectively in muscle and bone. It failed earlier programs in cancer cachexia and is widely misused as an unapproved SARM.
Mechanism: Tissue-selective androgen receptor agonism that promotes muscle protein synthesis with less androgenic effect on prostate and skin than testosterone.
Regulatory history: Investigational; not approved for any use. Unapproved SARM products are illegal to sell as supplements.
How MHRA treats this kind of product
Licenses medicines for the UK market. A compound without a marketing authorisation is an unlicensed medicine, which can only lawfully be supplied for human use through a prescriber under the specials scheme, not sold as a research product.
The classification above is the The Longevity Archive reading of Medicines and Healthcare products Regulatory Agency listings for Enobosarm at the reviewed date, not a legal opinion. Rules change, and importing, prescribing and possessing a compound can each be treated differently. Check the regulator directly before acting on anything here.
Enobosarm in other countries
United States
InvestigationalInvestigational; SARMs are not legal dietary ingredients and are on the WADA prohibited list
Is Enobosarm legal in the United States?Australia
Prescription routeSchedule 4 (prescription only); not approved
Is Enobosarm legal in Australia?Canada
Not approvedNot approved; not authorized for sale
Is Enobosarm legal in Canada?Frequently asked questions
Is Enobosarm legal in the United Kingdom?
No. Enobosarm is not an approved medicine in the United Kingdom; its classification is "Not licensed; sale for human use is unlawful". Nothing containing it is authorized for any use in people. Vials labeled "for research use only" are not exempt: that label does not make human use lawful. Human evidence: Moderate.
Can I buy Enobosarm in the United Kingdom?
No approved product exists to buy. In the United Kingdom Enobosarm is classified as "Not licensed; sale for human use is unlawful", so there is no licensed pharmacy product. Vendors selling it "for research use only" are not selling it for human use, and that label does not change its legal status. This site does not list or recommend vendors.
Is Enobosarm MHRA approved?
No. In the United Kingdom Enobosarm is classified as "Not licensed; sale for human use is unlawful", which is not a MHRA marketing approval. For comparison, the US FDA status is: Investigational; not approved for any use. Unapproved SARM products are illegal to sell as supplements.. Evidence level: Moderate.
Related compounds in the United Kingdom
Full research profile
Mechanism, cited studies, FDA status and the full legal summary for Enobosarm live on its compound profile.
Enobosarm profileThis page is general information about the regulatory status of Enobosarm in the United Kingdom, current as of Sep 2026. It is not legal advice, and classifications change; check Medicines and Healthcare products Regulatory Agency directly or consult a lawyer for a specific situation. Educational use only. This database summarizes published research. It is not medical advice and contains no dosing protocols or recommendations for personal use. The Longevity Archive has no vendor relationships and does not recommend where to buy anything.