About SarmsUK
SarmsUK is one of the UK’s leading suppliers of research-grade selective androgen receptor modulators (SARMs) and performance compounds. Based in Great Britain, we supply HPLC-tested compounds to researchers across the United Kingdom and internationally.
Every product we sell is manufactured in a GMP-certified UK facility and independently verified through High-Performance Liquid Chromatography (HPLC) testing by third-party laboratories. We publish full Certificates of Analysis for every batch — because if a supplier won’t show you the lab results, you should ask why.
Our Mission
The research compound market has a transparency problem. Too many suppliers sell untested, underdosed, or mislabelled products. We started SarmsUK to fix that.
Our mission is simple: provide the highest-purity research compounds available in the UK, backed by verifiable third-party testing and honest, science-based information. No exaggerated claims. No mystery ingredients. No guesswork.
Why Researchers Trust SarmsUK
- HPLC-Tested Every Batch — Every single batch is independently analysed via HPLC to verify identity and purity. View our lab reports →
- UK-Manufactured — All compounds are produced in GMP-certified facilities right here in the UK.
- Full Transparency — We publish Certificates of Analysis (COAs) for every product.
- Free Next-Day Delivery — Same-day dispatch on orders before 2pm (UK mainland). International shipping available.
- Honest Information — Our SARMs guide, side effects breakdown, and product pages include balanced research — including negative findings.
Our Product Range
We stock a carefully curated range of the most well-researched SARMs and performance compounds:
SARMs (Selective Androgen Receptor Modulators)
- RAD-140 (Testolone) — Potent AR agonist for lean mass and strength
- Ostarine MK-2866 — Most researched SARM, excellent for beginners
- LGD-4033 (Ligandrol) — Strong anabolic profile for bulking
- YK-11 — Myostatin inhibitor with unique dual mechanism
- Andarine S4 — Versatile for cutting and recomposition
- ACP-105 — Favourable anabolic-to-androgenic ratio
- RAD-150 (TLB-150) — Esterified RAD-140 with extended half-life
Non-SARM Performance Compounds
- Cardarine GW-501516 — PPARδ agonist for endurance and fat oxidation
- MK-677 (Ibutamoren) — Growth hormone secretagogue for recovery
- SR-9009 (Stenabolic) — Rev-Erbα agonist for metabolic research
Pre-Built Research Stacks
- Beginner Muscle Stack — Ostarine + Cardarine
- Intermediate Muscle Stack — RAD-140 + MK-677
- Advanced Muscle Stack — LGD-4033 + RAD-140 + MK-677
- Bulk Mass Stack — YK-11 + RAD-140 + MK-677
Quality Assurance Process
Every compound goes through a rigorous quality pipeline:
- Raw Material Sourcing — UK-based GMP synthesis facilities only.
- In-Process Testing — Verified during production for molecular identity.
- Independent HPLC Analysis — Third-party labs verify purity and absence of contaminants.
- COA Publication — Results on our Lab Reports page.
- Storage & Dispatch — Temperature-controlled, sealed, light-protected packaging.
Research-Only Disclaimer
All products sold by SarmsUK are intended for laboratory and research purposes only. They are not intended for human consumption. By purchasing, you confirm these compounds are for legitimate scientific research only.
Get in Touch
Questions about our products, testing, or anything else?