Skip to content

Legal status · United Kingdom

Is SRT2104 legal in the United Kingdom?

Written by Reviewed Sep 2026

Not approvedLongevityHuman studies cited: 1

Direct answer

No. SRT2104 is not an approved medicine in the United Kingdom; its classification is "Not licensed". 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. On the evidence, 1 human study is cited on its profile.

SRT2104 in the United Kingdom at a glance

ClassificationNot licensed
MHRA approval statusNot approved by MHRA
Human studies cited1 of 1 citations on the profile
ReviewedSep 2026

Classification and note come from the SRT2104 profile, checked against Medicines and Healthcare products Regulatory Agency (MHRA) listings at the reviewed date.

What this means

  • 01

    No product containing SRT2104 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 SRT2104 is

The sirtuin-activating drug that actually reached randomised human trials, built to succeed where resveratrol's potency failed. Its human results were modest and it did not advance.

Sirtuins were the biggest idea in longevity biology in the 2000s, and resveratrol was supposed to be the drug. When resveratrol turned out to be too weak and too poorly absorbed, the response was to build purpose-designed sirtuin-activating compounds that were orders of magnitude more potent.

Mechanism: Designed as a sirtuin-activating compound targeting SIRT1, an NAD-dependent protein deacetylase. SIRT1 deacetylates targets including PGC-1alpha, FOXO transcription factors and p53, and it was proposed as a mediator of dietary restriction benefits.

Regulatory history: Never approved. The programme did not advance to a marketed product.

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 SRT2104 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.

SRT2104 in other countries

Frequently asked questions

Is SRT2104 legal in the United Kingdom?

No. SRT2104 is not an approved medicine in the United Kingdom; its classification is "Not licensed". 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. On the evidence, 1 human study is cited on its profile.

Can I buy SRT2104 in the United Kingdom?

No approved product exists to buy. In the United Kingdom SRT2104 is classified as "Not licensed", 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 SRT2104 MHRA approved?

No. In the United Kingdom SRT2104 is classified as "Not licensed", which is not a MHRA marketing approval. For comparison, the US FDA status is: Never approved. The programme did not advance to a marketed product.. On the evidence, 1 human study is cited on its profile.

Related compounds in the United Kingdom

Full research profile

Mechanism, cited studies, FDA status and the full legal summary for SRT2104 live on its compound profile.

SRT2104 profile

This page is general information about the regulatory status of SRT2104 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.