What Is HPLC Testing and Why Does It Matter for Research Peptides?

In an HPLC test, a sample is passed through a column under pressure, and different molecules in the sample separate and elute at different times based on their chemical properties, producing a chromatogram. Analysts use the resulting peak areas to calculate what fraction of the total sample consists of the correctly synthesized target peptide, expressed as a purity percentage — commonly cited thresholds in the research-chemical field are in the high-90s percent range for a well-manufactured batch.

A Certificate of Analysis (COA) is the document that reports these results for a specific production lot, typically including the HPLC purity result and often a mass-spectrometry confirmation of molecular identity. Buyers of any legitimate research chemical are generally advised in the field to request lot-specific COAs rather than relying on generic marketing claims, since purity can vary between production batches even from the same supplier.

This explanation describes a general laboratory quality-control method applicable across the research-peptide field. REVIVE LAB UAE documents its actual catalog products with lot-specific COAs, but IGF-1 LR3 is not part of that catalog, so no IGF-1 LR3-specific COA or purity claim is made or implied anywhere on this site.