Searches for RAD140 keep climbing, and most come down to two questions: what is this compound, and where can it be sourced safely? This guide answers both. It covers Testolone's identity, formats, specifications, purity standards and UK sourcing, written entirely as research reference.

Here is the short version. RAD140 and Testolone are the same research compound, and it is a selective androgen receptor modulator (SARM). It is sold in the UK for research purposes only, and the single thing that matters most when buying is verified purity backed by independent testing.

What Is RAD140 (Testolone)?

RAD140, also called Testolone, is a research compound classified in the scientific literature as a nonsteroidal selective androgen receptor modulator (SARM). It was first described in published research in the 2010s. In the UK it is supplied strictly for laboratory research purposes only, not for human or animal consumption.

The "RAD-140" label is a pharmaceutical development code. "Testolone" is the name used across the research record. Both point to the same molecule, which is why a search for "rad140" or "testolone" returns the same compound.

RAD140 and Testolone: the Same Compound, Different Names

There is no difference between RAD140 and Testolone. One is the development code, the other is the research name in common use. Research papers and product listings use the terms interchangeably.

Names and Codes You Will See

This compound appears under several spellings, and knowing them helps when searching the literature or checking documentation:

• RAD140 and RAD-140: the development code, with or without the hyphen.
• Testolone: the common research name.
• RAD140 Testolone: the combined form used in many databases and listings.
• Testolone (RAD-140): the form often listed in chemical records and Certificates of Analysis.

When sourcing RAD140 liquid in the UK, the name on the Certificate of Analysis should match one of these recognised forms. That is a small but useful check on documentation accuracy.

How RAD140 Is Classified in the Literature

In scientific reference databases, Testolone is classified as a nonsteroidal selective androgen receptor modulator. This is a chemical classification only. It identifies the compound's category, in the same way a label like "solvent" identifies a class, and is included here purely for accurate identification of the research material.

Is RAD140 a SARM?

Yes. RAD140 is a SARM. Unlike some research compounds that are frequently grouped with SARMs by mistake, Testolone genuinely belongs to the selective androgen receptor modulator category in the scientific literature, and it is one of the most referenced compounds in that class.

Why RAD140 Is Classified as a SARM

SARMs are a class of nonsteroidal research compounds catalogued together by their chemical mode of classification. RAD140 (Testolone) sits in this class alongside compounds such as LGD-4033 UK and Ostarine (MK-2866) UK. For any research reference library, grouping these correctly keeps the catalogue accurate.

How RAD140 Differs from MK677 and Peptides

This is where confusion is most common. MK677 (Ibutamoren) is often listed next to SARMs but is not a SARM: it is catalogued separately as a non-peptide ghrelin receptor agonist. Peptide-based research materials such as BPC-157 sit in another category again. RAD140 is distinct from both: a nonsteroidal SARM. The distinction matters for classification, handling, and storage rather than for any functional claim.

RAD140 Liquid and Capsule Formats Explained

RAD140 is offered in two main research formats in the UK: liquid and capsules. The difference is one of handling and measurement in a research setting. Nxt Level Labz supplies it exclusively in liquid format.

How Liquid and Capsule Research Formats Differ

Liquid RAD140 is already in solution, which lets researchers measure precise volumes for repeatable laboratory protocols. Capsules contain a pre-set fixed amount per unit. For controlled research handling, the measurement flexibility of liquid is the main practical reason it is preferred by laboratories.

RAD140 Liquid Concentration and Volume

It is described by its concentration and bottle volume, for example, 10mg/ml in a 30ml bottle. The concentration states how much compound is present per millilitre of solution. These figures appear on the product page and on the Certificate of Analysis, and should match each other.

You can view the current concentration, volume, and COA on the RAD140 liquid product page.

RAD140 Specifications and Chemical Reference Data

The table below sets out standard reference data for Testolone. Figures can vary slightly between sources depending on the record consulted, so always confirm the exact values against the authoritative record on PubChem.

For the full published record, the standard index is the PubMed RAD140 listing. Working from primary sources is what separates accurate reference material from thin product copy.

How to Buy RAD140 in the UK Safely

For anyone searching to buy RAD140 in the UK, the decision should rest on verifiable standards, not marketing language. The points below are what actually matter.

What to Look For in a UK RAD140 Supplier

A trustworthy UK supplier meets a clear set of standards:

• Verified purity: 99%+, independently third-party tested.
• An accessible Certificate of Analysis: viewable, not just referenced.
• Liquid format: for precise volume measurement in protocols.
• UK-based dispatch: same-day where possible, with tracked delivery.
• Research-only positioning: no human-use language anywhere on the site.

Third-Party Testing and Certificates of Analysis (COA)

A Certificate of Analysis is the document that records a compound's purity and identity. The benchmark for research-grade material is 99%+ purity, verified by HPLC, by an independent third-party laboratory. A manufacturer's own certificate alone is a weaker standard than independent re-testing.

All compounds stocked by Nxt Level Labz are independently third-party tested, with a COA available for verification. You can review the current report on the third-party testing page.

How to Check a COA Is Genuine: Lab Portals and QR Verification

A genuine COA names the testing laboratory, the analytical method, the compound, and the measured purity. Stronger suppliers publish their COAs openly, and some add QR codes or lab portals so a certificate can be traced back to the testing source. Before buying, confirm the compound name on the COA matches the product, and that the document is recent rather than years old.

Same-Day Dispatch and Tracked UK Delivery

Dispatch speed matters on research timelines. Nxt Level Labz dispatches orders placed before 4PM the same working day, using tracked UK delivery. That lets a shipment be followed from dispatch through to arrival.

How Much Does RAD140 Cost in the UK?

RAD140 prices in the UK vary by format, concentration, and supplier standards. Understanding what drives the price helps separate fair value from a false saving.

What Affects RAD140 Pricing

Several factors move the price:

• Purity and testing: independent third-party testing adds cost but adds confidence.
• Format and concentration: higher concentration or larger volume changes the price per bottle.
• UK-based vs imported: UK dispatch and quality control carry a different cost base to imported stock.

Why the Cheapest RAD140 Is Not Always the Safest

The lowest price often signals a corner cut somewhere, usually testing or quality control. A product with no accessible COA, vague purity claims, or no clear testing process is a saving that is not worth making. For research material, verifiable purity is worth more than a few pounds saved. The current price and stock are shown on the RAD140 liquid page.

How to Store RAD140 Liquid

Correct storage protects the integrity of the compound between receipt and use in the laboratory.

Storage and Handling for Research Integrity

Store RAD140 liquid in a cool, dry place away from direct sunlight, and keep it out of reach of children. Handle it in line with good laboratory practice. Refrigeration is recommended for longer-term storage to help maintain stability over time.

Why Researchers Choose Nxt Level Labz for RAD140

Nxt Level Labz is a UK liquid research-compound supplier built around transparency:

• Supplied exclusively in liquid format
• 99%+ purity, independently third-party tested
• Certificate of Analysis available for verification
• Same-day dispatch before 4PM, tracked UK delivery
• UK-based, with research-only positioning throughout

RAD140: Frequently Asked Questions

Related Research Compound Guides

For a complete UK research-compound reference library, these guides sit alongside this one. Each covers a distinct compound for accurate classification and sourcing:

To recap: RAD140 and Testolone refer to the same research compound, a nonsteroidal selective androgen receptor modulator sold in the UK for research purposes only, where verified purity and an accessible COA matter more than anything else. If you want to buy it from a transparent, UK-based, third-party-tested source, view the current liquid product and its documentation on the RAD140 liquid page.