How to Verify a COA and Vet a Canadian Research Supplier
A 5-minute checklist for verifying a Certificate of Analysis and vetting a Canadian research supplier before you order.
Read
September 24, 2026 · 3 min read
The Journal
Research notes & field guides
Practical guides on purity, testing, handling, and the science behind research peptides. Educational only — strictly research use.
August 18, 2026 · 10 min read
Tesamorelin vs Somatropin: Secretagogue vs Recombinant GH
Two research materials that sit at opposite ends of the same endocrine cascade — one nudges the pituitary from upstream, the other…
Read
August 18, 2026 · 10 min read
GHK-Cu, GLOW and KLOW: Copper Peptides Explained
A molecular look at the copper-binding tripeptide GHK-Cu — its coordination chemistry, its role in extracellular-matrix and gene-expression research, and how it…
Read
August 18, 2026 · 10 min read
BPC-157 vs TB-500: Peptides in Tissue-Repair Research
How a stable gastric pentadecapeptide and a Thymosin β4-related fragment differ in molecular target and mechanism across in-vitro and preclinical tissue-repair research.
Read
August 18, 2026 · 10 min read
Semax vs Selank: Two Research Neuropeptides Compared
A mechanism-level comparison of two short regulatory neuropeptides — one derived from ACTH, one from tuftsin — supplied strictly as laboratory reference…
Read
August 18, 2026 · 11 min read
Tirzepatide vs Retatrutide: Incretin Receptor Targets Compared
How a dual GIP/GLP-1 agonist and a triple GIP/GLP-1/glucagon agonist differ at the receptor level — and what those differences mean for…
Read
August 4, 2026 · 2 min read
How to Read a Certificate of Analysis (COA)
Task number, batch, results, and the verification key: a plain-language walkthrough of a third-party peptide COA.
Read
July 31, 2026 · 2 min read
How to Reconstitute a Lyophilised Peptide
Diluent choice, gentle technique, and storage that protects your material through the working window.
Read
July 26, 2026 · 1 min read
What 99% HPLC purity actually means
Purity and content answer different questions. Here is what an HPLC number does, and does not, tell you.
Read
July 21, 2026 · 1 min read
GLP-1, GIP and glucagon: an incretin primer
Single, dual, and triple agonists explained: how the most-studied metabolic research peptides differ.
Read