Third-Party Tested Peptides | Purity & COAs | RemedyX Labs
Independent third-party laboratory testing on every batch — HPLC purity analysis, mass spectrometry identity confirmation, microbial sterility, endotoxin and heavy-metals screening. Every Certificate of Analysis is lot-specific and verifiable.
How are RemedyX Labs peptides tested for purity?
Every batch is sent to an independent, accredited third-party laboratory for HPLC (high-performance liquid chromatography) analysis. HPLC measures the percentage of the target compound relative to all detectable substances, giving an objective purity reading that is documented in the lot-specific Certificate of Analysis.
What is HPLC testing and why does it matter for research peptides?
HPLC (high-performance liquid chromatography) separates the components of a sample and measures each by UV absorbance. For research peptides, it confirms that the compound is present at the stated concentration and that impurities — including related peptides, truncated sequences, and residual solvents — are below acceptable thresholds. This makes HPLC the gold standard for peptide purity verification.
What does mass spectrometry confirm in peptide testing?
Mass spectrometry (MS) confirms the molecular identity of the compound by measuring its exact molecular mass. This verifies that the material is the correct peptide and not a structurally similar but different compound. When paired with HPLC purity data, mass spec identity confirmation gives researchers full confidence in compound authenticity.
Is every batch independently tested, or just representative samples?
Every production batch is independently tested — not just sampled periodically. Each lot receives its own Certificate of Analysis tied to that specific batch number. Researchers can verify their exact lot against the published COA on our website.
What purity levels do RemedyX Labs peptides meet?
Our research-grade peptides are formulated to meet a minimum of 98% purity as measured by HPLC. Batch-specific purity values are published in each Certificate of Analysis and are verifiable through our public COA lookup tool.
What other safety tests are run beyond HPLC and mass spec?
Depending on the compound, additional testing may include microbial sterility screening, endotoxin (LAL) testing, and heavy metals analysis. These tests confirm the material is safe for in-vitro laboratory use and meets research-grade standards.