What Is Reconstitution?
Category: Dosing
The process of adding bacteriostatic water to lyophilized peptide powder to create an injectable solution. Always inject water slowly along the vial wall - never spray directly on the powder.
Detailed Explanation
Reconstitution is the process of dissolving lyophilized (freeze-dried) peptide powder in a liquid solvent, typically bacteriostatic water, to create an injectable solution. This is one of the most critical steps in peptide preparation, as improper technique can damage the peptide and reduce its effectiveness. The amount of water added determines the concentration of the final solution, which directly affects how many units to draw on an insulin syringe for each dose.
Practical Context
To reconstitute properly: clean both vial tops with alcohol swabs, draw the calculated amount of bacteriostatic water, insert the needle into the peptide vial at an angle, and slowly let the water drip down the inside wall of the vial. Never spray directly onto the powder cake, as the force can denature the peptide. After adding water, let the vial sit for 5-10 minutes, then gently swirl if powder remains. Never shake. Refrigerate immediately after reconstitution.
Frequently Asked Questions
How much water should I add to my peptide vial?
The optimal amount depends on the peptide, vial size, and your desired dose. Use a reconstitution calculator to determine the best amount. More water makes measuring small doses easier but means drawing more units per injection.
What if the powder doesn't fully dissolve?
Let it sit longer (up to 30 minutes) and gently swirl. Do not shake. If particles remain after extended time, the peptide may have been damaged or the water may not be sufficient.
Related Peptides
- BPC-157 - A pentadecapeptide derived from human gastric juice, known for tissue healing properties. (Dosage | Calculator)
- TB-500 - A synthetic peptide of the naturally occurring thymosin beta-4, promotes healing and reduces inflammation. (Dosage | Calculator)
- Ipamorelin - A selective GH secretagogue with minimal effect on cortisol or prolactin. (Dosage | Calculator)
Related Terms
- Bacteriostatic Water (BAC Water) - Sterile water containing 0.9% benzyl alcohol as a preservative. Used to reconstitute peptides because it inhibits bacterial growth, extending the shelf life of mixed peptides to 3-4 weeks.
- Lyophilized (Freeze-Dried) - The powder form of peptides as they arrive from the manufacturer. Lyophilized peptides are stable for extended storage and must be reconstituted with bacteriostatic water before use.
- Concentration - The amount of peptide dissolved per unit of liquid, typically expressed as mcg per unit or mg per ml. Calculated by dividing the total peptide amount by the volume of water added.
- Denaturing - The process by which a peptide loses its three-dimensional structure and biological activity. Can be caused by shaking, excessive heat, freezing (after reconstitution), or UV light exposure.
- Vial Size - The total amount of peptide powder in a vial before reconstitution, measured in milligrams (mg). Common sizes include 5mg, 10mg, 15mg, and 30mg depending on the peptide.