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About
An independent, free tool for the arithmetic behind peptide dosing — reconstitution, draw volume, syringe units and half-life. It sells nothing and recommends no vendor or dose. This page explains what it is, how it works, where its data comes from, and its limits.
OUR APPROACH
Principles
A few commitments that shape everything here.
Neutral by design
No ads, no product sales, no vendor recommendations, and no email required. Nothing here is trying to sell you a peptide.
Sourced, not invented
Reference values come from FDA labels and published research; purity and supply-chain context from independent sources like Finnrick and Janoshik. Where a peptide has no established human data, we say so rather than invent a number.
Arithmetic, not advice
The calculators do math — concentration, draw volume, U-100 units, half-life accumulation. They do not tell you what to take, and nothing here is medical advice.
Kept current
Reference and regulatory data is reviewed on a regular cadence as labels, research, and FDA status change.
How the calculators work
Reconstitution: concentration = vial mg ÷ bacteriostatic water mL; the draw for a target dose = dose ÷ concentration, shown in mL and U-100 insulin-syringe units (units = mL × 100). The blend planner runs the same math per peptide for a same-syringe co-draw. The half-life tool uses a one-compartment, first-order model (k = ln2 ÷ half-life) to estimate accumulation and washout — a relative estimate, not an absolute plasma concentration. Every figure is arithmetic you can check yourself; none of it is a dose recommendation.
Reference and arithmetic only. Not medical advice; verify with a clinician, product label, or pharmacist.
Frequently asked questions
Who is behind this site?
It is an independent, non-commercial project — not affiliated with any manufacturer, vendor, or clinic. It is a reference and calculation tool, not a substitute for a licensed clinician or pharmacist; that is why every page repeats that it is not medical advice.
Where does the data come from?
Dosing ranges and regulatory status come from FDA labels and published clinical research; purity and supply-chain context from independent sources such as Finnrick and lab-testing services like Janoshik. Where a peptide has no established human data, the tools say so instead of inventing a value.
How should I use these numbers?
As arithmetic to check against your own vial and your clinician’s or pharmacy’s instructions — not as a dose to take. Always verify against the product label and with a qualified professional before using anything.
Is any of this medical advice?
No. Everything here is general reference and arithmetic. It does not diagnose, prescribe, or recommend a dose, and many of the peptides covered are research compounds that are not FDA-approved for human use.