Reconstitution

What is reconstitution?

Peptides come as a freeze-dried (lyophilized) powder inside a vial. Before using them you must dissolve them in a liquid: this is called reconstitution. The usual liquid is bacteriostatic water, which contains a mild preservative that lets you keep the mixture in the fridge for several days.

What you need

• The vial with the peptide powder.
• A vial of bacteriostatic water.
• A syringe (usually insulin).
• Alcohol wipes.

Step by step

1. Wash your hands well.
2. Clean the rubber stopper of both vials (peptide and water) with an alcohol wipe.
3. Draw into the syringe the amount of bacteriostatic water you will use.
4. Insert the needle into the peptide vial at an angle, so the water slides down the vial wall and does not fall directly onto the powder.
5. Let the water mix. If powder remains, gently swirl the vial between your fingers until it dissolves completely.
6. Store the reconstituted vial in the fridge.

Important tips

• Do not shake the vial hard: the peptide is delicate and can be damaged. Only swirl slowly.
• Always use bacteriostatic water, not tap or mineral water.
• The liquid should be clear. If it is cloudy or has particles, do not use it.
• Write the reconstitution date on the vial.