The peptide research library.
Purity, third-party testing, Certificates of Analysis, lab handling, and research overviews — written for people who verify before they buy.
Purity & Testing
How to Read a Peptide Certificate of Analysis (COA)
A section-by-section guide to reading a peptide Certificate of Analysis, from mass-spec identity to HPLC purity, so a laboratory can verify what a research sample actually contains.
What Does 99% Peptide Purity Actually Mean?
“99% purity” is one of the most cited and least understood numbers in peptide research. Here is what HPLC purity actually measures, how it differs from net peptide content, and why it matters for reproducible results.
Third-Party Testing for Research Peptides: Why It Matters
Independent lab verification is what separates verifiable research peptide quality from marketing language. Here is how third-party testing and per-batch COAs support reproducible work.
Lab & Handling
Handling Lyophilized Research Peptides in the Lab
A practical laboratory guide to lyophilized research peptides: what freeze-dried samples look like, why they are dried, and how to store, inspect, and reconstitute them with proper sterile technique.
Storage and Stability of Research Peptides
A benchtop guide to peptide storage and stability: how temperature, light, moisture, and freeze-thaw cycles affect research peptide samples, and the laboratory handling practices that keep results reproducible.
Buyer Guides
How to Choose a Research Peptide Supplier: A Buyer's Guide
A practical, checklist-driven guide to choosing a research peptide supplier — how to verify COAs, third-party testing, purity standards, and batch documentation before you buy.
Peptide Research
BPC-157: A Research Overview
BPC-157 is a synthetic pentadecapeptide that has become a frequent subject of preclinical investigation. This overview summarizes what the scientific literature has examined at a mechanistic level, for laboratory research context only.
NAD+ in Cellular Research: An Overview
A literature-focused overview of NAD+ as a coenzyme in cellular energy metabolism and sirtuin signaling, and why purity matters for reproducible NAD+ research.
Semax and Selank: A Nootropic Research Overview
A mechanistic, literature-review comparison of Semax and Selank, two Russian-developed nootropic peptides studied in preclinical neuroscience for their distinct neurotrophic and GABAergic signaling profiles.
GHK-Cu: A Skin & Collagen Research Overview
An educational survey of GHK-Cu, the copper tripeptide featured across dermatological and extracellular-matrix research, with notes on structure, the published literature, and laboratory handling of research samples.