How to reconstitute HGH
Step-by-step instructions for mixing a HGH vial using bacteriostatic water, plus the units in each dose after it is mixed.
- Sizes of vials for sale
- 5.8 mg
- With water added, 5.8 mg gives 2.9 mg per mL
- 2 mL
- After opening: bac water
- 28 days

Mixing HGH step by step
- Wash your hands, then use an alcohol swab to wipe the rubber stoppers on the peptide vial and the bacteriostatic water.
- Use the syringe to draw up the water you chose. With 2 mL of water, a 5.8 mg vial gives 2.9 mg per mL.
- At a slight angle, insert the needle into the stopper and push it through. Let the water run slowly down the vial's inside wall.
- Until the powder is gone, gently roll the vial between your hands. Don't shake it.
- Mark the vial with the mix date, and store it as your product or prescription directs.
- Work out the units for your dose first. Then draw the syringe to the matching mark.
Chart for HGH reconstitution
| Vial | Water added | Strength | Units for a sample dose |
|---|---|---|---|
| 5.8 mg | 1 mL | 5.8 mg/mL | 4.3 units for 250 mcg |
| 5.8 mg | 2 mL | 2.9 mg/mL | 8.6 units for 250 mcg |
| 5.8 mg | 3 mL | 1.933 mg/mL | 12.9 units for 250 mcg |
Your HGH dose in units
Information on the label
FDA-approved somatropin brands include Genotropin, Humatrope, Norditropin, Omnitrope, plus Serostim; a prescription is required. Each branded pen and vial includes its own instructions, and those take priority over general steps.
Questions people often ask
How much bacteriostatic water do I need for 5.8 mg of HGH?
No single amount is always right. With 2 mL, each mL has 2.9 mg; adding more water lowers the strength of each unit, so small doses are easier to draw.
Can I mix HGH with sterile water?
Sterile water is single use and has no preservative, so bacteriostatic water is usually used for a mixed vial that you draw from over days. Learn how sterile water differs from bacteriostatic water.