Calculating HGH dosage requires understanding International Units (IU), reconstitution volumes, and how to convert between IU and milligrams. This comprehensive guide provides everything you need to accurately dose human growth hormone.
HGH Dosage Calculator: Quick Reference
Use this reference table for common HGH reconstitution scenarios:
| HGH Vial | BAC Water | Concentration | 2 IU Dose | 4 IU Dose |
|---|---|---|---|---|
| 10 IU | 1ml | 10 IU/ml | 20 units | 40 units |
| 10 IU | 2ml | 5 IU/ml | 40 units | 80 units |
| 12 IU (4mg) | 1ml | 12 IU/ml | 17 units | 33 units |
| 15 IU (5mg) | 1.5ml | 10 IU/ml | 20 units | 40 units |
| 18 IU (6mg) | 1.8ml | 10 IU/ml | 20 units | 40 units |
| 36 IU (12mg) | 3.6ml | 10 IU/ml | 20 units | 40 units |
Understanding HGH Units
IU vs Milligrams
HGH is measured in International Units (IU), but some manufacturers list content in milligrams. The conversion is:
- 1mg HGH = 3 IU (approximate standard)
- Some brands use 1mg = 2.7 IU
- Always check your specific product documentation
Common vial sizes:
- 10 IU = ~3.3mg
- 12 IU = 4mg
- 15 IU = 5mg
- 18 IU = 6mg
- 36 IU = 12mg
Step-by-Step HGH Dosage Calculation
1 Choose Your Reconstitution Volume
The amount of bacteriostatic water determines your concentration. A common approach is to create a 10 IU/ml concentration for easy math:
Formula: Water volume = Vial IU ÷ Desired concentration
Example: For a 10 IU vial at 10 IU/ml concentration:
- Water = 10 IU ÷ 10 IU/ml = 1ml
Pro Tip: Creating a 10 IU/ml concentration makes dosing simple: each 10 units on your syringe equals 1 IU of HGH.
2 Calculate Units to Inject
Using a U-100 insulin syringe:
Formula: Syringe units = (Desired IU ÷ Concentration) × 100
Example: You want 4 IU from a 10 IU/ml solution:
- Units = (4 IU ÷ 10 IU/ml) × 100 = 40 units
3 Simplified Method
With a 10 IU/ml concentration, the math is simple:
- 1 IU = 10 syringe units
- 2 IU = 20 syringe units
- 3 IU = 30 syringe units
- 4 IU = 40 syringe units
- 5 IU = 50 syringe units
Standard HGH Dosing Protocols
| Goal | Daily Dose | Frequency | Duration |
|---|---|---|---|
| Anti-aging / General wellness | 1-2 IU | Daily or 5 days on/2 off | 6-12 months |
| Fat loss / Body recomposition | 2-4 IU | Daily | 3-6 months |
| Muscle building | 4-6 IU | Daily | 3-6 months |
| Injury recovery | 4-8 IU | Daily | Until healed |
HGH Timing Considerations
When you take HGH affects its interaction with insulin and cortisol:
Best Times to Inject HGH
- Morning (fasted) - Most common; mimics natural AM cortisol/GH rhythm
- Pre-workout - May enhance fat burning during exercise
- Before bed - Amplifies natural nocturnal GH pulse
Split Dosing
For doses above 3-4 IU, splitting into multiple injections may be beneficial:
- Morning (fasted): 3 IU
- Pre-bed or post-workout: 3 IU
Important: Avoid injecting HGH within 2-3 hours of eating, especially carbohydrates. Elevated insulin blunts GH's fat-burning effects.
HGH Reconstitution Guide
1 Gather Supplies
- HGH vial (lyophilized powder)
- Bacteriostatic water
- Alcohol swabs
- Insulin syringe (for mixing and injecting)
2 Add Water Carefully
- Clean both vial stoppers with alcohol
- Draw desired amount of BAC water into syringe
- Inject slowly along vial wall (not directly on powder)
- Let it dissolve naturally - do NOT shake
3 Storage After Reconstitution
- Refrigerate immediately (2-8°C / 36-46°F)
- Use within 3-4 weeks
- Never freeze reconstituted HGH
- Protect from light
HGH Dosage by Vial Size
10 IU Vial Examples
| Daily Dose | If Using 1ml BAC Water | Days Per Vial |
|---|---|---|
| 2 IU | 20 units | 5 days |
| 3 IU | 30 units | 3.3 days |
| 4 IU | 40 units | 2.5 days |
36 IU Vial Examples
| Daily Dose | If Using 3.6ml BAC Water | Days Per Vial |
|---|---|---|
| 2 IU | 20 units | 18 days |
| 4 IU | 40 units | 9 days |
| 6 IU | 60 units | 6 days |
Frequently Asked Questions
How do I calculate HGH dosage in IU?
To calculate HGH dosage: First determine your concentration (vial IU ÷ ml of water added). Then calculate syringe units: (desired IU ÷ concentration) × 100. For example, with a 10 IU vial reconstituted in 1ml (10 IU/ml), getting 2 IU requires: (2 ÷ 10) × 100 = 20 syringe units.
How many IU is 1mg of HGH?
The standard conversion is 1mg of HGH equals approximately 3 IU. However, some manufacturers use slightly different conversions (2.7-3.0 IU per mg). Always check your specific product's labeling for the exact conversion used by that manufacturer.
What is a good starting dose for HGH?
Most protocols recommend starting with 1-2 IU daily for anti-aging and general wellness purposes. For fat loss and body recomposition, 2-4 IU daily is common. Starting low allows you to assess tolerance and minimize side effects like water retention and joint pain before increasing if needed.
How much bacteriostatic water do I add to HGH?
The amount of bacteriostatic water is flexible and determines your concentration. A simple approach is to create a 10 IU/ml concentration: add 1ml to a 10 IU vial, 1.5ml to a 15 IU vial, or 3.6ml to a 36 IU vial. This makes dose calculation easy since every 10 syringe units equals 1 IU of HGH.
Summary
Accurate HGH dosage calculation starts with understanding the relationship between IU, milligrams, and reconstitution volumes. Create a convenient concentration like 10 IU/ml for easy math, always use bacteriostatic water, and maintain proper storage to preserve potency.
Start with lower doses to assess tolerance, time your injections away from meals, and consider splitting larger daily doses for optimal results.