Dexterz Labs Testolone RAD-140 5mg 90 Capsules

RAD-140, usually called testolone, is a non steroidal selective androgen receptor modulator discovered at Radius Health, which later investigated it in androgen receptor positive breast cancer. This bottle contains 90 capsules at 5mg of RAD-140 per capsule, manufactured in the United Kingdom. Supplied for laboratory research only and not for human consumption.

Product specification

What the research says about RAD-140

RAD-140 was introduced to the literature by Miller and colleagues in ACS Medicinal Chemistry Letters in 2011. That paper describes the discovery chemistry and the preclinical work: in castrated rats the compound produced anabolic activity in levator ani muscle comparable to testosterone while leaving the prostate largely unaffected, and in a primate study it increased lean body mass over twenty eight days. The selectivity ratio reported in that work is the origin of almost everything written about the compound since.

Subsequent academic interest has run in two directions. Jayaraman and colleagues reported in Endocrinology in 2014 that RAD-140 had neuroprotective activity in cultured rat neurons and in a rat model, work that treated the compound as a possible androgen replacement for the brain rather than for muscle. Separately, Radius Health investigated RAD-140 in androgen receptor positive breast cancer, and a phase I trial in that indication was registered. No peer reviewed trial has reported lean mass or strength outcomes for RAD-140 in healthy human volunteers, which is the central gap in its evidence base.

The safety literature that does exist in humans comes from case reports rather than trials. Several papers in hepatology and internal medicine journals since 2019 have described cholestatic or mixed pattern liver injury in people who took products sold as RAD-140, sometimes alongside other compounds and often without any analysis of what the product actually contained. Preclinical work also shows the expected suppression of endogenous androgen production. Anyone reading about this compound should weigh a strong preclinical record against a thin and largely adverse human record.

Quality and testing

Dexterz Labs products are manufactured in the UK to a fixed strength per capsule with the batch number printed on every bottle. Independent batch certificates of analysis, confirming identity by HPLC or LC-MS and stating purity, are being commissioned and will be published on this page as each batch is tested. Until then, if you need the batch report for research records, contact sales@sarmsstore.co.uk with your batch number.

Frequently asked questions

Is RAD-140 legal in the UK in 2026? SARMs are not controlled substances under the Misuse of Drugs Act 1971, so buying and possessing RAD-140 as a research chemical is lawful in the United Kingdom in 2026. What is not lawful is selling or advertising it for human use, because the MHRA treats it as an unlicensed medicine in that context. That is why this listing, and every listing on this site, is worded for laboratory research and nothing else.

How fast is delivery? We despatch UK orders the same working day by tracked delivery, usually arriving within two to three working days, with a next day upgrade available at checkout, in discreet plain packaging that carries no product or compound name on the outer label. International shipping is offered to most countries, subject to a restricted destination list shown at checkout where local import rules apply.

How should the capsules be stored? The bottle should be kept closed in a cool, dry place below 25C, out of direct light. Handled that way the capsules hold to the shelf life on the label. Do not decant into unlabelled containers, because the batch number on the original bottle is what ties the material to its certificate of analysis.

Is RAD-140 prohibited in sport? Yes, at all times, under section S1.2 of the WADA prohibited list. Testolone has featured in a number of published anti doping decisions and is detectable by routine screening. It should be assumed to be reportable at trace concentrations.

What makes RAD-140 different from RAD-150? RAD-150, also sold as TLB-150, is the benzoate ester of RAD-140. Esterification is a formulation strategy intended to change stability and release rather than to change the underlying receptor pharmacology. The published evidence sits almost entirely with RAD-140 itself; RAD-150 has no meaningful literature of its own.

Research use only. This product is supplied strictly for laboratory and research purposes and is not for human consumption. It is not a medicine, it is not a food supplement, and it is not intended to diagnose, treat, cure or prevent any disease. Sold to persons aged 18 or over only.