For qualified researchers only · Ages 21+
Cellis Research

Documentation & due diligence

Research guides

Verify the report. Understand the method. Compare the evidence.

01 · Quality & Testing

How to Verify a Peptide COA

Verify a peptide certificate of analysis by matching the vial batch number to the report, checking the laboratory’s original verification record, and reading purity and identity results separately. A genuine report is only relevant to your material when its sample details match the supplied batch.

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02 · Quality & Testing

What HPLC and Mass Spec Testing Mean for Research Peptides

HPLC separates sample components and can report chromatographic purity under a stated method; mass spectrometry measures ion mass-to-charge ratios and can support identity. These techniques answer different questions, and neither a purity percentage nor a mass match alone establishes every property of a research peptide batch.

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03 · Supplier Guides

How to Choose a US Research Peptide Supplier

Choose a research peptide supplier by reviewing independent analytical evidence, batch-matched certificates, documented storage conditions, the actual shipping origin and transparent policies. Evaluate the material and its documentation rather than treating a US address, a low price or a testing badge as proof of quality.

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Which compound suppliers can you compare?

Documented attributes, consistent price calculations, and source links. No rankings or unsupported claims.

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Cellis Research

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