Buy SARMs UK: Ostarine, RAD-140, LGD-4033 & MK-677
New to SARMs? Start with SARMs 101 →
About this range
SARMs UK: buy research SARMs from a UK store rated 4.9 from over 2,900 verified reviews. The full Dexterz Labs range of selective androgen receptor modulators and related research compounds, manufactured in the United Kingdom to a fixed strength per capsule with a batch number on every bottle: Ostarine (MK-2866), Ligandrol (LGD-4033), Testolone (RAD-140), Andarine (S-4), YK-11, S-23 and ACP-105, alongside the growth hormone secretagogue Ibutamoren (MK-677), the PPAR delta agonist Cardarine (GW-501516) and the Rev-ErbA agonist Stenabolic (SR-9009), which are grouped here because they appear in the same research literature, plus Alpha Labs TLB-150 (RAD-150).
Ostarine is the only compound in the range with phase III clinical data; most of the others have phase I or preclinical data only, and Cardarine's development was stopped in 2007 on animal safety findings. Read the guide for each compound before buying: SARMs 101, Ostarine, LGD-4033, RAD-140, MK-677, Cardarine. The legal position is set out in Are SARMs legal in the UK?.
Browse by research goal
Compounds studied for lean mass are grouped in SARMs for muscle research; those studied for fat oxidation and endurance in SARMs for fat loss research. New to the literature? Start with beginner SARMs. The compounds most often discussed in research involving women are grouped in SARMs for women. Ready-made combinations are in SARMs stacks and cutting stacks, support products in PCT and cycle support, hormone precursor compounds in prohormones, and the Origin Peptides range in peptides. Our best sellers lists the most ordered compounds.
Buying SARMs in the UK: how to choose
SARMs (selective androgen receptor modulators) were developed by pharmaceutical companies to act on the androgen receptor in some tissues and not others. None of them is a licensed medicine in the UK. We supply them strictly for laboratory research, in capsule form, in our own Dexterz Labs range, packed and dispatched from our UK warehouse. The table below sets out how the compounds on this page differ.
The compounds on this page, compared
| Compound | Also known as | What it is | Where the published research sits | Capsule strength | Guide |
|---|---|---|---|---|---|
| Ostarine | MK-2866, enobosarm | SARM | The largest clinical record of any SARM: phase II and III trials in muscle wasting and cancer cachexia | 10mg | Ostarine guide |
| Ligandrol | LGD-4033, VK5211 | SARM | Phase I in healthy volunteers, phase II in hip fracture recovery | 10mg | LGD-4033 guide |
| Testolone | RAD-140 | SARM | Phase I in breast cancer; primate and rodent work | 5mg | RAD-140 guide |
| Ibutamoren | MK-677, Nutrobal | Growth hormone secretagogue (not a SARM) | Several human trials on growth hormone and IGF-1 levels | 10mg | MK-677 guide |
| Cardarine | GW-501516, Endurabol | PPAR-delta agonist (not a SARM) | Development stopped in 2007 after rodent findings | 10mg | Cardarine guide |
| Stenabolic | SR-9009 | Rev-ErbA agonist (not a SARM) | Rodent studies only | 8mg | SR-9009 guide |
| YK-11 | Myostine | Androgen receptor partial agonist | Cell studies on myostatin and follistatin | 5mg | YK-11 guide |
| Andarine | S-4 | SARM | Rodent studies only | 25mg | Andarine guide |
| S-23 | SARM | Rodent studies only | 10mg | S-23 guide | |
| ACP-105 | SARM | Rodent studies only | 5mg | ACP-105 guide | |
| RAD-150 | TLB-150 | Ester of RAD-140 | Very limited published data | 5mg | RAD-150 guide |
Three compounds on this page are not SARMs at all. MK-677, Cardarine and SR-9009 sit alongside SARMs because researchers often study them together, but they work through different pathways and are covered by different parts of the literature. Our Best SARMs UK 2026 guide ranks the whole range by clinical evidence.
Single compounds or a stack
Single compounds suit work that isolates one mechanism. Our stacks group compounds that are commonly studied together, at a lower price than buying each one separately, and multibuy savings apply across the whole basket: 5% on any two items, 10% on three and 15% on six. If you are new to the category, the Beginner Muscle Stack and the Beginner Cutting Stack are the simplest starting points, and the SARMs stacks guide explains which combinations appear in the literature.
What to check before you buy SARMs anywhere
- A batch certificate of analysis. It should name the compound, the batch number printed on the bottle, the testing laboratory and the purity by HPLC. How to read a certificate of analysis explains each line.
- Milligrams per capsule. Strengths vary between suppliers, so compare price per milligram, not price per bottle.
- Capsules or liquid. Capsules hold a fixed amount and keep better than solutions, which can degrade or separate. Our capsules or liquid guide covers the stability data.
- Where it ships from. Buying from a UK supplier avoids customs delays and import seizures. We dispatch from the UK by tracked delivery.
- Plain research framing. A supplier that gives doses or promises results is selling a medicine without a licence, and that is a warning sign about everything else it does.
Are SARMs legal in the UK in 2026?
SARMs are not controlled under the Misuse of Drugs Act 1971, so buying and possessing them for research is lawful. They are not licensed medicines, so they cannot lawfully be sold or advertised for human consumption, and the MHRA treats any SARM sold with dosing instructions or health claims as an unlicensed medicine. In sport, all SARMs are prohibited at all times under section S1.2 of the WADA list.
Frequently asked questions
Where is the best place to buy SARMs in the UK?
Choose a UK supplier that publishes batch certificates, states the milligrams per capsule, dispatches from the UK and does not give dosing advice. Those four checks remove most of the risk of buying an underdosed or mislabelled product.
What is the difference between SARMs and MK-677?
SARMs act on the androgen receptor. MK-677 does not: it mimics ghrelin and raises growth hormone release. They are often studied together, which is why MK-677 sits in this collection.
Do SARMs need a prescription in the UK?
No SARM is a licensed medicine, so none can be prescribed. They are sold in the UK only as research chemicals.
How quickly are orders dispatched?
Orders placed before the daily cut off are packed and despatched from our UK warehouse the same working day by tracked delivery, usually arriving within two to three working days for UK addresses, with a next day upgrade available at checkout.
Every batch is independently tested and its certificate of analysis is published on the product page and on the Lab Testing page. Products are supplied strictly for laboratory research and are not for human consumption. 18+ only.