Clear research updates and guides
Short, plain guides to lab records, testing and research basics, with sources listed.
Latest notes
- COA How to Read a Peptide COA What the header, results table, identity and result lines, and lab signature tell you, and how to check a record against its source.
- Testing Purity vs. Identity in Research Documentation What identity and purity each tell you, how net peptide content differs from the result figure, and why a record needs both.
- Testing What HPLC and Mass Spec Mean on a COA What each test method measures, why HPLC sits behind the result figure and mass spec behind identity, and where to find the full lab report.
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Plain, clear information. Everything here is for research use only.
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Research Documentation FAQ
What does “research use only” mean?
It means a material is supplied only for lawful laboratory research. It is not a quality grade, and it is not an approval of any kind.
What is a certificate of analysis (COA)?
It is a lab’s report of what it measured in a sample from one specific lot. It lists what was tested, the methods used, the results, and the test date. How to read one.
What does a COA not prove?
A COA describes one tested sample, measured with specific methods, at one point in time. It does not show that a material is safe or approved. It does not mean a material is suitable for any use outside lawful laboratory research. It also says nothing certain about other lots.
What is HPLC?
HPLC stands for high-performance liquid chromatography. It separates the parts of a sample so each one can be detected and measured. On a peptide COA, it usually gives the main result: how much of what the detector saw is the main compound. More on HPLC.
What is LC-MS/MS?
LC-MS/MS stands for liquid chromatography with tandem mass spectrometry. It measures the mass of molecules and of the smaller pieces (fragments) they break into. Labs use this to check whether a compound matches what the label says. More on mass spectrometry.
Why do lot numbers matter?
A record describes one lot only. The lot number is how you check that a record matches the material you actually have. A different lot needs its own record.
What does “documentation pending” mean?
It means no lab record has been published for that product yet. It is not a failed test, and it is not a pass. There is simply nothing published to review yet.
How should I compare research suppliers?
Compare them by records you can check. Look for lot-specific records from a named lab, with methods and dates, that you can match to the lot you receive. Purity badges, reviews and bold claims are not records.
Why can a purity claim without a record be misleading?
A percentage on its own doesn’t say which lot, lab, method or date it came from. It also doesn’t tell you whether it describes the material you would receive.
Where can I see PolarLabs' actual records?
In the Verification Center, which lists our published records. The guides here explain how to read them. Open the Verification Center.
Do these articles tell me how to use a compound?
No. All PolarLabs materials are for research use only. These guides only explain lab records and testing, and how to check a record. They do not cover how to use, prepare or apply anything.
All products and information on this site are intended for research use only. Not for human or veterinary use.