Evidence-led resources
Understand research compounds, analytical verification, certificates of analysis, and the documentation behind the Not Labs catalog.
For research use only. Not for human or veterinary use.
Explore the library
Choose a research path below, or continue to the newest resources.
Latest compound research
Canonical resources covering compound identity, research context, analytical considerations, evidence limitations, and related documentation.
COA and documentation
Practical guidance for matching lot information, interpreting reported purity, and understanding what a certificate can and cannot establish.
Analytical verification
Clear explanations of identity, purity, HPLC, mass spectrometry, batch documentation, and the limits of individual methods.
Featured research
Selected comparison, mechanism, pathway, and terminology resources developed around distinct research questions.
Featured resources
COA fundamentals
How to Read a Peptide Certificate of Analysis
Review identity, purity, lot information, methods, and the limits of a certificate before interpreting a batch record.
Analytical interpretation
Purity vs Identity in Peptide Analysis
Understand why chromatographic purity and analyte identity answer different analytical questions.
Comparative research
Retatrutide vs Tirzepatide
Compare dual and triple receptor frameworks, experimental controls, and the documentation needed for defensible interpretation.
Compound overview
MOTS-c Research Overview
Examine mitochondrial-derived peptide research, model selection, evidence boundaries, and batch-level analytical context.
Testing credibility
What Does “Lab-Tested” Mean?
Separate specific analytical evidence from broad testing language by reviewing the sample, method, result, and batch connection.
Comparative research
BPC-157 and TB-500
Distinguish the two research materials, their analytical requirements, and the controls needed for a defensible comparative design.
COA review checklist
Peptide COA Red Flags
Identify missing batch details, unclear methods, identity and purity confusion, and claims extending beyond the evidence shown.
Evidence boundaries
What a Peptide COA Can and Cannot Prove
Separate the attributes a certificate can support from conclusions that require additional methods, records, or controls.
Method comparison
HPLC vs. LC-MS in Peptide Analysis
Compare chromatographic separation with mass-based identity evidence and understand why the methods answer different questions.
Compound research
Tirzepatide Research Context
Examine dual GIP and GLP-1 receptor design, model selection, analytical controls, and evidence boundaries.
Compound research
Thymalin Research Overview
Review composition, thymic peptide research models, analytical verification, and limits of the available evidence.
Experimental design
Peptide Blends Explained
Understand identity, ratio, controls, batch documentation, and interpretation challenges in multi-compound research.
Matrix biology
GHK-Cu and Collagen Research
Assess fibroblast and extracellular-matrix models, copper controls, analytical requirements, and evidence boundaries.
Latest research
Amylin-receptor research
Cagrilintide Research Context
Review amylin-receptor signaling, analytical identity, combination study design, and evidence boundaries.
GLP-1 receptor research
Semaglutide Research Context
Review GLP-1 receptor signaling, analytical identity, comparative study design, and evidence boundaries.
More research
Continue with focused compound overviews and side-by-side research comparisons.
COMPARATIVE RESEARCH
CJC-1295 No DAC vs DAC
COMPOUND RESEARCH
Retatrutide Research Context
COMPARATIVE RESEARCH
Cagrilintide vs Semaglutide
COMPOUND RESEARCH
BPC-157 Research Context
COMPOUND RESEARCH
CJC-1295 No DAC Research Context
COMPOUND RESEARCH
TB-500 Research Context
COMPARATIVE RESEARCH
CJC-1295 No DAC vs Ipamorelin
COMPOUND RESEARCH
Ipamorelin Research Context
Start with the evidence
Not Labs separates educational context from current batch documentation. Review our verification standards, browse available research compounds, or resolve common documentation questions.
Editorial standard
Each resource is designed to reduce uncertainty. Scientific claims require credible sources, analytical limitations are stated clearly, and educational pages do not provide dosing, administration, or therapeutic guidance. Product availability and current batch documents remain on the relevant product and quality pages.