Guides
The reference articles behind the calculators. Each one works through the arithmetic with the numbers shown.
Cost per mg and Cost per Draw: How to Compare Peptide Vials on Price
Cost per mg is vial price divided by mg in the vial; cost per draw is cost per mg times mg per draw. A worked 5 mg vs 10 mg comparison, with packs and shipping.
Read →GLP-1 Titration Schedules Compared: Semaglutide, Tirzepatide, Retatrutide, Cagrilintide
Week-by-week label schedules for Wegovy, Ozempic and Zepbound beside the retatrutide and cagrilintide trial doses, plus the math that turns a step into units.
Read →How Long Reconstituted Peptides Last: Storage, Fridge Time and Bacteriostatic Water
Powder keeps for years frozen; a mixed vial is a 28-day multi-dose vial by USP convention. Bacteriostatic water, fridge temps, freezing, light and degradation.
Read →How Many Draws Are in a Vial? Vial Yield Math
Draws per vial equals vial mass divided by mass per draw. A yield table for 2, 5 and 10 mg vials, why water volume does not change the count, and rounding down.
Read →How Much Bacteriostatic Water to Add to a Peptide Vial (and Why the Volume Is Your Choice)
The water volume sets the concentration, not the mass. Picking a volume that gives round syringe units, a table for 2, 5 and 10 mg vials, and capacity limits.
Read →How to Inject Peptides Subcutaneously: Sites, Needles, Steps
Which insulin syringe to use, where to inject (abdomen, thigh, back of arm), site rotation, 45 vs 90 degrees, why no aspiration, and needle disposal.
Read →How to Read a Peptide Dosage Chart (and Turn It Into Syringe Units)
What a dose range means, the three basis types (label, trial, commonly reported), weekly vs daily totals, and two worked conversions from a chart row to units.
Read →How to Use a Peptide Reconstitution Calculator (Step by Step)
The three inputs, the three outputs and the formula behind every peptide reconstitution calculator, with two worked examples and the input mistakes to check.
Read →Insulin Syringe Units Explained: U-100, 0.3 mL, 0.5 mL and 1 mL Barrels
What a unit means on a U-100 insulin syringe, how 0.3 mL, 0.5 mL and 1 mL barrels are marked, the U-40 trap, and a units-to-mL table for reading any draw.
Read →mcg vs mg: The Conversion Every Reconstitution Depends On
1 mg equals 1,000 mcg, and µg means the same as mcg. Where the 1,000× mistake shows up in reconstitution math, a conversion table, and how mcg/mL is derived.
Read →Peptide Cycle Length: How Long to Run BPC-157, TB-500, GH Secretagogues and GLP-1s
Why GLP-1s run continuously by label, why GH secretagogues get breaks (the hexarelin data), and why BPC-157 and TB-500 cycle lengths are convention only.
Read →Reading a Certificate of Analysis for Mass: Net Peptide Content vs Label Claim
What a third-party COA reports, why 99% purity is not 5 mg of peptide, how net peptide content differs from label mass, and how it changes the math.
Read →Seven Reconstitution Math Mistakes and How to Catch Them
Seven arithmetic errors in peptide reconstitution, each with the wrong and right number side by side: mcg vs mg, pack mass, U-40, barrel size and rounding.
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