Policy Methodology
How PeptideGauge calculates, ranks and corrects
Everything on this site is meant to be checkable by the reader. This page is the method, in full, so you can check it.
01 Calculator
Reconstitution calculator
The calculator performs four operations on three numbers the user supplies: milligrams in the vial, milliliters of water added, and the mass wanted in one draw.
| Output | Formula |
|---|---|
| Concentration (mg/mL) | vial mg / water mL |
| Draw volume (mL) | draw mg / concentration |
| Units on a U-100 syringe | draw mL x 100 |
| Draws per vial | vial mg / draw mg |
Micrograms are divided by 1,000 to get milligrams before anything else runs. The unit rule, 100 units per milliliter, is the U-100 insulin syringe graduation defined in ISO 8537. A 1 mL syringe therefore reads 100 units, a 0.5 mL syringe 50, and a 0.3 mL syringe 30. The calculator flags any draw larger than the chosen syringe.
Presets fill the vial size field only. There is no preset, default, or example for the draw amount beyond the arithmetic examples below, and the water field has no suggested value.
Test cases
These three examples are the calculator's acceptance test. The code is checked against them before every deployment; a build that fails any one of them is not published.
Test 1
5 mg vial, 2 mL water, 250 mcg draw, 1 mL syringe.
5 / 2 = 2.5 mg/mL. 0.25 / 2.5 = 0.1 mL. 0.1 x 100 = 10 units. 5 / 0.25 = 20 draws.
Test 2
10 mg vial, 1 mL water, 1 mg draw, 1 mL syringe.
10 / 1 = 10 mg/mL. 1 / 10 = 0.1 mL. 0.1 x 100 = 10 units. 10 / 1 = 10 draws.
Test 3
2 mg vial, 1 mL water, 100 mcg draw, 1 mL syringe.
2 / 1 = 2 mg/mL. 0.1 / 2 = 0.05 mL. 0.05 x 100 = 5 units. 2 / 0.1 = 20 draws.
Rounding: results display to four decimal places for volume and concentration and two for units and draws. The underlying arithmetic is not rounded between steps. Nothing typed into the calculator leaves the browser.
02 Scope
What this site does not cover, and why
A few things are left out on purpose. Saying so plainly matters more than pretending the gap is not there.
- Dosing. No page states an amount, a schedule, a starting point, or an "example dose". The compounds discussed here are research compounds without approved human dosing, and a number on a web page is not the same as a clinician's judgment about a specific person. The calculator converts the number you type; it never proposes one.
- Bacteriostatic water. No brand, no volume recommendations, no step-by-step reconstitution instructions. The water volume in the calculator is an input, not an output.
- Three compounds by name. A small set of trademarked or prescription-only compounds is not named anywhere on the site. The site is not a substitute for a prescriber on those.
- Buying advice. PeptideGauge is not a store and links to no cart. When the vendor table ships, it ranks on published documents, not on price or on anyone's say-so.
Short version: this site is a calculator and a document-reading guide. It is not a clinic, a store, or a protocol.
03 Ranking
Vendor transparency ranking (method, ahead of the table)
The companies table is not published yet. The rules it will follow are fixed now so they cannot be bent to fit a result later.
- Each vendor is scored only on what its own public pages show: whether certificates of analysis are posted, whether they name a third-party lab, whether the lot on the certificate can be matched to a product lot, whether purity and identity methods are stated, and whether the certificate date is visible.
- Every cell carries the date it was checked and how it was checked (which URL, what was looked for). A cell that could not be verified says "not verified", never a guess.
- No vendor is described negatively beyond what its own pages show or fail to show. Absence of a document is recorded as absence, not as an accusation.
- No paid placement. No vendor pays for a position, a link, or a review, and none supplies product. If that ever changes, a disclosure appears on the About page, above the table, and on the affected row, and that vendor's links are marked sponsored.
- Cells are re-verified on a stated cadence and the table shows the last full pass.
04 Sources
How claims are sourced
Compound pages, when they ship, cite primary literature by PubMed ID or PMC ID on every claim about what has been studied, and say what the study was (cell, animal, human; size; year). Secondary sources, vendor pages, and forum posts are not used as evidence for research claims. A claim without a checkable source is cut rather than hedged.
Authorship: pages carry the byline PeptideGauge Editors until the named editor is listed on the About page. No compound page is published under the placeholder byline.
05 Corrections
Corrections and changelog
Errors are corrected in place and logged here with the date and what changed. Nothing is silently edited. If you find an error, it is fixed and logged here once found.
- Site launched with the calculator, this methodology page, and the About page. Calculator test cases 1 to 3 passed before deployment.
If you cannot check it, it does not belong on this site.
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