Guides
Full-length explanations rather than summary cards. Each guide states its sources, separates human trial evidence from animal and cell work, and links back to the relevant reference entries and calculators.
LITERACY · HANDLING · DOSING MATH · COMPARISON · EXPLAINER · REFERENCE
How to read a peptide Certificate of Analysis
A Certificate of Analysis is only useful if it is lot-specific, method-documented, and matched to the vial in your hand. This guide is a field-by-field checklist: what a COA is, what HPLC and mass spectrometry each answer, why purity is not content, and which red flags mean the paperwork is not doing its job.
14 MIN READ · 9 SECTIONS · 4 SOURCES
LITERACYHow to Read a Peptide Vial Label
A vial sticker is not a Certificate of Analysis. This checklist covers the fields that matter on a peptide vial label—name, mass, lot, storage, and research-use statements—and how to check them against the COA and the listing before you treat the paperwork as describing the vial in your hand.
12 MIN READ · 7 SECTIONS · 4 SOURCES
LITERACYApproved vs investigational peptides: how to tell the difference
The same amino-acid sequence name can appear as an FDA-approved medicine, as an investigational trial drug under an IND, or as research-use catalog material. This literacy guide explains what each status actually means, how to verify it, and which paperwork answers which question.
13 MIN READ · 9 SECTIONS · 6 SOURCES
HANDLINGPeptide reconstitution and bacteriostatic water: a step-by-step educational guide
A plain-English walkthrough of how lyophilised peptides are dissolved for research use, including the concentration math, common mistakes, and why the diluent you choose matters.
11 MIN READ · 7 SECTIONS · 5 SOURCES
DOSING MATHPeptide dosing math: concentration, volume and units
Concentration, volume, and syringe unit markings are three different quantities that are easy to conflate. Here is the arithmetic that connects them, explained through worked examples rather than any recommended amount.
12 MIN READ · 9 SECTIONS · 6 SOURCES
DOSING MATHBacteriostatic water ratios explained
Choosing how much bacteriostatic water to add to a vial does not change the total amount of peptide it contains — it changes the concentration, and with it, how readable the resulting draw volumes are. Here is the reasoning behind common ratio choices.
11 MIN READ · 8 SECTIONS · 6 SOURCES
HANDLINGHow to read a U-100 insulin syringe
Insulin syringes are graduated in 'units,' not milligrams or millilitres, and mixing those concepts up is one of the most common sources of confusion in research settings. Here is how the markings actually work.
10 MIN READ · 6 SECTIONS · 5 SOURCES
DOSING MATHIU vs mcg vs syringe units: what each means
The word 'unit' shows up in at least three unrelated contexts — international units of biological activity, syringe volume markings, and colloquial shorthand — and conflating them is a well-documented source of confusion. Here is how each is actually defined.
11 MIN READ · 8 SECTIONS · 6 SOURCES
COMPARISONSemaglutide vs tirzepatide vs retatrutide: what the evidence shows
Three incretin-based molecules dominate current obesity and diabetes research and practice. Here is what their trial programmes actually show — and where cross-trial comparisons break down.
14 MIN READ · 8 SECTIONS · 10 SOURCES
EXPLAINERDual agonists explained: how tirzepatide combines GIP and GLP-1
Tirzepatide activates two incretin receptors instead of one. Here is the mechanistic case for dual agonism and what the human trial data actually shows.
11 MIN READ · 7 SECTIONS · 6 SOURCES
REFERENCEPeptide classes overview: incretins, secretagogues, repair, melanocortin and more
Research and clinical peptides span an enormous range of receptor targets and evidence quality. This guide organizes the landscape into functional classes so each peptide can be understood in context.
15 MIN READ · 10 SECTIONS · 10 SOURCES
HANDLINGStorage, stability and research handling basics
Peptides are chemically fragile molecules. Understanding temperature, light, agitation, and container-material effects is central to keeping a research sample interpretable and consistent.
11 MIN READ · 8 SECTIONS · 6 SOURCES
Working through the arithmetic?
The reconstitution, bacteriostatic water and syringe draw calculators sit alongside these guides and share the same worked examples.
Open the calculators