Companion Resources

Additional material for readers of The Complete Peptide Protocols Playbook. Everything here works without signing in, without an email address, and without sending anything anywhere.

Reconstitution & dose calculator

The book explains how to reconstitute safely but never shows the arithmetic. This does. It converts a vial and a target dose into the number of units you can actually read on a U-100 insulin syringe.

Show me the arithmetic

A U-100 insulin syringe holds 100 units per millilitre. That single fact is the whole conversion: 1 unit = 0.01 mL.

  1. Concentration = vial mg ÷ water mL  →  mg per mL
  2. Volume to draw = dose mg ÷ concentration  →  mL
  3. Units = volume mL × 100
  4. In one line: units = dose(mcg) × water(mL) ÷ (vial(mg) × 10)
  5. One unit delivers = vial(mg) × 10 ÷ water(mL)  →  mcg

Worked example. A 5 mg vial with 2 mL of water is 2.5 mg/mL, i.e. 2500 mcg/mL. A 250 mcg dose is 0.1 mL, which is 10 units. Check with the one-liner: 250 × 2 ÷ (5 × 10) = 10. ✓

The water volume changes nothing about how much peptide you take. It only changes how easy that amount is to measure.

Reference table — units per dose at common dilutions
How long does it keep once mixed?

Bacteriostatic water is sterile water with 0.9% benzyl alcohol added as a preservative, supplied in a multiple-dose container. Preservative-free sterile water has no such protection and is single-use.

The commonly applied 28-day limit for a punctured multi-dose vial is a pharmacy convention (USP <797> / CDC), not a figure printed on the manufacturer's label — the Pfizer/Hospira label carries no discard date at all. The binding limit is whichever is shorter: that 28-day container window, or how long the particular peptide stays stable in solution, which is often less.

Refrigerate at 2–8 °C once mixed, keep it dark and upright, and write the date on the vial. Bacteriostatic water is not for neonates.

What this page is. It is a set of reference and arithmetic tools that accompany a book. It is not medical advice, it does not diagnose, and it does not tell anyone what to take. Many compounds discussed in this field — including BPC-157, TB-500, MOTS-c and retatrutide — are not approved by any regulator for human use, and in 2026 the FDA stated plainly that a “research use only” label does not change that when the seller's marketing shows human intent. Anything you decide to put in your body is a decision for you and a licensed clinician who knows your history. Nothing you type into this page is stored, saved, or transmitted — the arithmetic runs entirely in your own browser, and closing the tab erases it.