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What's in a Regena COA
HPLC purity ≥ 98%
High-Performance Liquid Chromatography quantifies the percentage of the target peptide in each batch. Research-grade material reads 98%+ with a clean main peak.
Mass spectrometry identity
MS confirms the molecular weight matches the target sequence exactly — proving the compound IS what the label says, not a misfold or substitution.
Endotoxin & sterility
LAL endotoxin testing ensures bacterial contamination is below detection thresholds — critical for any in-vitro research application.
Independent ISO-accredited lab
Every COA on file is signed by a third-party lab — never the manufacturer. Independent verification is the strongest quality signal in the industry.
How to read an HPLC chromatogram
- 01Main peak height & symmetry. One tall, sharp, symmetrical peak corresponds to the target peptide. Tailing or shoulders suggest impurity.
- 02Area-under-curve %. The integration table reports the main peak as a percentage of total area — that figure is the purity. Anything under 98% is substandard for research applications.
- 03Identity confirmation. A separate MS spectrum should accompany the chromatogram, confirming the molecular weight (m/z) matches the target sequence.
- 04Batch traceability. A valid COA carries the batch number, manufacture date, retest date and signature of the QC analyst.
Red flags when a COA isn't legitimate
- No third-party lab name or accreditation number on the document
- Generic chromatogram reused across multiple unrelated batches
- Purity reported without an integration table or visible peaks
- Missing batch number, manufacture date or analyst signature
- Vendor refuses to provide a COA for the specific vial shipped
Request a COA for any Regena batch
Every order includes the COA for the exact vial shipped. Researchers can request a copy in advance — message the team and we'll send a PDF for the current production lot.