Research peptides and SARMs are tested with analytical methods such as HPLC for purity; published certificates show identity as CONFORMS. At Explicit SARMs, our products are manufactured in the US. Published COAs are in our Lab Results Hub.
By the Explicit SARMs Team. Updated November 6, 2026.
Why does testing matter for research compounds?
Research results are only as reliable as the material that goes into them. If a compound is mislabeled, underfilled or contaminated with related substances, a study can produce misleading data. Testing answers two questions that matter for any lab: is this the right compound, and how much of the sample is that compound?
What testing is done?
Published COAs from Accumark Labs, an independent third-party lab, are in our Lab Results Hub. Published certificates report HPLC purity and identity as CONFORMS. Where a product has no COA yet, we are waiting for the next updated batch and will send it out for a COA when it arrives.
Which analytical methods are used?
- HPLC (high-performance liquid chromatography) separates the sample and measures purity as a percentage.
- Mass spectrometry (MS or LC-MS) measures molecular mass to confirm identity.
- Content or assay testing checks that the amount per capsule, vial or milliliter matches the label.
Who does the independent testing?
Independent testing is done by Accumark Labs, an independent third-party lab. Using an outside lab means the results do not come from the seller grading its own work.
Where are Explicit SARMs products made?
Our products are made by domestic manufacturing partners in the United States.
Where can I find a COA?
Published COAs, with verify links, are in our Lab Results Hub. Where a product has no COA yet, we are waiting for the next updated batch and will send it out for a COA when it arrives. If you are new to reading these reports, see how to read a COA.
Are tested products approved for human use?
No. Testing confirms identity and purity for research. It does not make any compound an approved drug or suitable for human consumption.
Which products does this cover?
The same process applies across our catalog, from SARM capsules such as Ostarine MK-2866 to research peptides such as BPC-157 and research liquids.
What does a purity result actually tell you?
A purity result from HPLC is the share of the detected material that is the target compound. A result of 99% means that about 1% of the signal came from other substances, such as synthesis by-products or closely related sequences. Purity does not on its own confirm identity, which is why published certificates also report identity as CONFORMS.
How is testing different for blends?
For a blend such as KLOW or SX3, the identity test has to confirm every component, not just one. The COA should list each compound separately so you can see that all of them are present.
What does a lot number on a COA tell you?
A lot number identifies a production run. On any COA, it shows which run of material was analyzed, which is why it is one of the first things to check when reading a certificate.
For laboratory research use only. Not for human consumption. Sold by Explicit SARMs as reference material for laboratory research use only by qualified professionals.
See every published certificate, with lot numbers and verify links, in our lab test results hub.