Documentation
A Canadian research buyer’s documentation checklist
A practical pre-purchase checklist for comparing research-material listings, records and identifiers.
PLP Research Journal
Compound science and evidence reading, written plainly.
22 original guides: one for every compound in the catalogue, plus frameworks for reading studies, comparing listings, planning storage and checking Canadian product information.
Featured guide
Cell studies, animal models and human trials: how to read peptide evidence
A tiering framework for peptide literature, with worked examples of what each study type can and cannot support.
Understanding evidence · 2 min read
Read the guideUnderstanding evidence
Three tiers of peptide evidence
21 guides
Documentation
Reading a peptide COA: identity, purity and batch matching
How to read a certificate of analysis without treating one result as proof of everything.
Storage
Planning storage for lyophilized research peptides
A documentation-first storage plan that keeps product-specific instructions in control.
Canada
Research materials and authorized medicines: checking Canadian product information
How to use Health Canada’s Drug Product Database without confusing an ingredient match with product authorization.
Comparisons
Comparing peptide listings: quantity, blends and documentation
A side-by-side framework for comparing what a listing actually says before comparing price.
Compound guides
BPC-157: what the tendon-cell research actually reported
A plain-language guide to BPC-157 as an experimental peptide studied in tissue-repair models, and the limits of that work.
Compound guides
TB-500 and thymosin beta-4: reading the wound-repair literature carefully
What mouse wound-healing research on thymosin beta-4 shows, and why a TB-500 label needs supplier confirmation.
Compound guides
Retatrutide: three receptor targets and one 2023 phase 2 trial
What the published retatrutide trial reported, including adverse effects, and why “GLP-3” is not a real target.
Compound guides
CJC-1295 and ipamorelin: two separate signals in one blend listing
What the CJC-1295 and ipamorelin literature reports separately, and what a 10 mg blend listing leaves unspecified.
Compound guides
Wolverine Stack: a nickname for a blend, not a molecule
How to read a BPC-157 and TB-500 blend listing when the cited research examined each component separately.
Compound guides
Tesamorelin: a GHRH analogue studied in a specific patient population
What the 2007 tesamorelin trial measured, why visceral fat is not general weight loss, and what that excludes.
Compound guides
Semaglutide: mechanism from the label, outcomes from the trial
How official labelling describes semaglutide’s GLP-1 receptor mechanism, what STEP 1 measured, and the limits of both.
Compound guides
PT-141 (bremelanotide): melanocortin signalling and a narrow approved indication
What US bremelanotide labelling states about mechanism, indication and adverse effects — and what it excludes.
Understanding evidence
GLP-1, GIP and glucagon: understanding receptor names
What the receptor names in metabolic peptide research actually refer to, and why “GLP-3” is not one of them.
Understanding evidence
Single compounds and blends: why component research is not combination evidence
How to reason about a multi-component listing when the published studies examined the components separately.
Understanding evidence
Reading a peptide study: population, comparator, endpoint and follow-up
Four questions that turn a study abstract into a sentence you can actually defend.
Documentation
Verifying a peptide COA: report number, laboratory and chain of custody
A worksheet for checking whether a certificate of analysis genuinely belongs to the vial in front of you, and what verification cannot settle.
Understanding evidence
Purity, peptide content and biological activity are three different measurements
Why a purity percentage, a content figure and an activity result answer separate questions — with worked illustrative examples showing how they can disagree.
Understanding evidence
Auditing a peptide claim you saw on social media
A repeatable five-step audit for tracing a peptide claim back to its evidence, with worked illustrative examples of how claims drift.
Documentation
Peptide batch records: matching catalogue listing, vial label and laboratory report
A reusable record layout for keeping the three descriptions of the same material — listing, label and report — aligned, with unknowns recorded as unknown.
Documentation
Understanding peptide concentration: milligrams, millilitres and sample volume
How milligrams per millilitre is calculated, how a target sample amount becomes a volume, and which assumptions the arithmetic does not make.
Research tool
Peptide concentration & volume calculator
Convert a total milligram amount and a final solution volume into milligrams per millilitre, then read the sample volume for a target amount in millilitres and microlitres, with an illustrated syringe schematic.
All guides are written by Proof Line Peptides and cite primary research or official product labelling. Published research describes compounds studied under laboratory or clinical conditions; it does not test materials sold for laboratory research use.