Peptide Dosing Calculations
Accurate dosing requires understanding concentrations and syringe measurements. This comprehensive guide covers the math, provides examples, and helps you dose with confidence.
The Fundamentals
Understanding Concentration
When you reconstitute a peptide, you create a solution with a specific concentration—the amount of peptide per unit of liquid.
Basic Formula:
```
Concentration = Peptide Amount ÷ Water Volume
```
Example:
This means each milliliter of solution contains 2,500mcg of peptide.
Unit Conversions
Weight conversions:
Volume conversions (U-100 insulin syringe):
Understanding Insulin Syringes
Most peptide research uses U-100 insulin syringes, which are calibrated in "units" rather than milliliters.
U-100 Syringe Basics
The "U-100" designation means 100 units per milliliter:
| Units | Milliliters |
|---|---|
| 100 units | 1.00 ml |
| 50 units | 0.50 ml |
| 10 units | 0.10 ml |
| 5 units | 0.05 ml |
| 1 unit | 0.01 ml |
Common Syringe Sizes
| Syringe Size | Total Units | Best For |
|---|---|---|
| 0.3ml (30 units) | 30 | Very small doses, fine gradations |
| 0.5ml (50 units) | 50 | Small to medium doses |
| 1ml (100 units) | 100 | Standard doses |
Tip: Smaller syringes have finer measurement lines, allowing more precise small doses.
Step-by-Step Dose Calculation
Step 1: Calculate Your Concentration
After reconstitution:
```
Peptide amount (mcg) ÷ Water added (ml) = Concentration (mcg/ml)
```
Step 2: Calculate Volume Needed
For your desired dose:
```
Desired dose (mcg) ÷ Concentration (mcg/ml) = ml to draw
```
Step 3: Convert to Syringe Units
Convert milliliters to units:
```
ml to draw × 100 = units to draw
```
Practical Examples
Example 1: BPC-157 (5mg vial)
Situation: 5mg BPC-157, reconstituted with 2ml BAC water, want 250mcg dose
Step 1: Calculate concentration
Step 2: Calculate volume
Step 3: Convert to units
Result: Draw to the 10-unit mark
Example 2: TB-500 (5mg vial)
Situation: 5mg TB-500, reconstituted with 1ml BAC water, want 2mg (2,000mcg) dose
Step 1: Calculate concentration
Step 2: Calculate volume
Step 3: Convert to units
Result: Draw to the 40-unit mark
Example 3: Smaller Dose Calculation
Situation: 10mg peptide, 2ml BAC water, want 100mcg dose
Step 1: Calculate concentration
Step 2: Calculate volume
Step 3: Convert to units
Result: Draw to the 2-unit mark (use a 0.3ml syringe for accuracy)
Quick Reference Charts
5mg Peptide + 2ml BAC Water (2,500mcg/ml)
| Desired Dose | Volume | Units |
|---|---|---|
| 100mcg | 0.04ml | 4 units |
| 250mcg | 0.10ml | 10 units |
| 500mcg | 0.20ml | 20 units |
| 750mcg | 0.30ml | 30 units |
| 1,000mcg (1mg) | 0.40ml | 40 units |
5mg Peptide + 1ml BAC Water (5,000mcg/ml)
| Desired Dose | Volume | Units |
|---|---|---|
| 100mcg | 0.02ml | 2 units |
| 250mcg | 0.05ml | 5 units |
| 500mcg | 0.10ml | 10 units |
| 750mcg | 0.15ml | 15 units |
| 1,000mcg (1mg) | 0.20ml | 20 units |
10mg Peptide + 2ml BAC Water (5,000mcg/ml)
| Desired Dose | Volume | Units |
|---|---|---|
| 250mcg | 0.05ml | 5 units |
| 500mcg | 0.10ml | 10 units |
| 1,000mcg (1mg) | 0.20ml | 20 units |
| 1,500mcg | 0.30ml | 30 units |
| 2,000mcg (2mg) | 0.40ml | 40 units |
Tips for Accurate Dosing
Common Mistakes to Avoid
Conclusion
Accurate dosing is straightforward once you understand the relationships between peptide amount, water volume, concentration, and syringe units. Use our Peptide Calculator for quick, error-free calculations.
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