Peptide Dosing Calculations
Accurate dosing requires understanding concentrations and syringe measurements. This guide walks through the math and provides practical examples.
Understanding Concentration
When you reconstitute a peptide, you create a solution with a specific concentration. This concentration tells you how much peptide is in each unit of liquid.
The Basic Formula
Concentration = Peptide Amount ÷ Water Volume
Example:
This means each milliliter of solution contains 2500mcg of peptide.
Common Reconstitution Examples
| Peptide | Water Added | Concentration |
|---|---|---|
| 5mg | 1ml | 5000mcg/ml |
| 5mg | 2ml | 2500mcg/ml |
| 10mg | 2ml | 5000mcg/ml |
| 10mg | 2.5ml | 4000mcg/ml |
| 3mg | 1ml | 3000mcg/ml |
Understanding Insulin Syringes
Insulin syringes are measured in "units" (IU), not milliliters directly. Understanding this conversion is essential.
Standard U-100 Insulin Syringe
The most common syringe is the U-100 (100 units per 1ml):
Syringe Sizes
| Syringe Size | Total Units | Best For |
|---|---|---|
| 0.3ml | 30 units | Very small doses |
| 0.5ml | 50 units | Small to medium doses |
| 1ml | 100 units | Standard doses |
Calculating Your Dose
Step 1: Determine Concentration
After reconstitution, calculate your concentration:
Step 2: Calculate Volume Needed
For your desired dose:
Step 3: Convert to Syringe Units
Convert ml to units:
Practical Example
Scenario: You have a 5mg BPC-157 vial, added 2ml BAC water, and want a 250mcg dose.
Step 1: Calculate concentration
Step 2: Calculate volume
Step 3: Convert to units
Result: Draw to the 10 unit mark on your insulin syringe.
Quick Reference Charts
5mg Peptide Reconstituted with 2ml BAC Water (2500mcg/ml)
| Desired Dose | ML to Draw | Units (U-100) |
|---|---|---|
| 100mcg | 0.04ml | 4 units |
| 250mcg | 0.10ml | 10 units |
| 500mcg | 0.20ml | 20 units |
| 750mcg | 0.30ml | 30 units |
| 1000mcg | 0.40ml | 40 units |
10mg Peptide Reconstituted with 2ml BAC Water (5000mcg/ml)
| Desired Dose | ML to Draw | Units (U-100) |
|---|---|---|
| 250mcg | 0.05ml | 5 units |
| 500mcg | 0.10ml | 10 units |
| 1000mcg | 0.20ml | 20 units |
| 1500mcg | 0.30ml | 30 units |
| 2000mcg | 0.40ml | 40 units |
Tips for Accurate Dosing
Use Our Calculator
For quick and accurate calculations, use our [Peptide Dosing Calculator](/calculator). Simply enter:
The calculator will tell you exactly how many units to draw.
Common Mistakes
Frequently Asked Questions
How do I calculate peptide concentration?
Divide the peptide amount (in mcg) by the water volume (in ml). For example, 5mg (5000mcg) in 2ml = 2500mcg/ml concentration.
What does 10 units on an insulin syringe equal?
On a standard U-100 insulin syringe, 10 units equals 0.1ml. The entire 100 unit syringe holds 1ml.
Does adding more water change the peptide potency?
No, adding more water only changes the concentration, not the total amount of peptide. You'll just need to draw more volume to get the same dose.
Need Help with Dosing?
Use our calculator to determine exact amounts for your research.
Peptide Calculator