Research Library
The reference layer for the self-directed researcher.
Two libraries in one. Compound-class overviews and per-compound profiles map what the literature studies and how the molecules differ. Analytical methodology covers how to verify what arrives in the vial. Written for laboratory-research contexts, sourced to primary literature.
Compound Classes
receptor & mechanism familiesCompound Class · 4 compounds
Tissue-Repair Peptides
How the tissue-repair peptide class is studied in research: BPC-157, TB-500, and GHK-Cu, their molecular targets, what preclinical work examines, and how they differ.
Class overviewCompound Class · 3 compounds
GH Secretagogues
How the growth-hormone secretagogue class is studied: GHRH analogs (CJC-1295, Tesamorelin) vs ghrelin-receptor agonists (Ipamorelin), their receptor targets, and why the two are examined together.
Class overviewCompound Class · 3 compounds
Metabolic Peptides
How the metabolic peptide class is studied: incretin triple agonists (GLP-3), amylin analogs (Cagrilintide), and growth-hormone fragments (AOD9604), their receptor targets and research areas.
Class overviewCompound Class · 2 compounds
Melanocortin Peptides
How the melanocortin peptide class is studied: PT-141 and Melanotan-2, the melanocortin receptor family (MC1R–MC5R) they act on, and what the receptor-signaling literature examines.
Class overviewCompound Class · 2 compounds
Neuropeptides
How the nootropic neuropeptide class is studied: Semax (an ACTH-fragment analog) and Selank (a tuftsin analog), the CNS signaling pathways they engage, and how they differ.
Class overviewCompound Class · 2 compounds
Mitochondrial Peptides
How the mitochondrial peptide class is studied: SS-31, a cardiolipin-targeting tetrapeptide, and MOTS-c, a mitochondrial-derived signaling peptide — two distinct routes to the same organelle.
Class overviewAnalytical & Methodology
how to verify the vialFoundational · 11 min read
How to Read a Certificate of Analysis
A field-by-field walkthrough of a research peptide Certificate of Analysis: what each line means, what to verify, and what should make a researcher reject a batch.
Foundational · 11 min read
What ≥99% Purity Actually Means: HPLC Explained
A deep technical reference on what HPLC actually measures, how peptide purity is calculated, why ≥99% is the working threshold, and what falls below it.
Foundational · 11 min read
Mass Spectrometry, HPLC, and LAL Endotoxin Testing
The three core analytical methods used to release a research peptide batch: what each one measures, why all three are required, and how they complement each other.
Foundational · 10 min read
Cold-Chain Logistics for Research Peptide Shipping
When research peptides need cold-chain shipping and when they don't: the temperature stability of lyophilized vs. reconstituted forms, transit-time math, and the practice that actually matters.
Foundational · 11 min read
Lyophilization and Reconstitution: A Research Primer
What lyophilization is, why peptides are stored that way, and how researchers think about reconstitution as a process, including the materials and physical chemistry involved.
Editorial standards
Every article in this library is written for laboratory-research contexts. We describe what the peer-reviewed and primary literature reports — mechanism, receptor targets, and molecular identity — and make no claims about effects in humans.
Claims are sourced to primary references: peer-reviewed journals, PubMed/PMC, and authoritative databases including UniProt, DrugBank, and the United States Pharmacopeia. Each page lists its sources and carries a last-updated date. Where independent verification is pending, we say so rather than imply it.
All content is research-use-only. See our research compliance page for the full operational posture on testing and documentation.
For research use only. Not for human consumption, diagnosis, treatment, or prevention of any disease. All articles are written for laboratory research contexts.