Preparation & administration
Reconstitution
Also known as: recon · reconstitute · mixing
Dissolving a freeze-dried peptide powder into liquid — almost always bacteriostatic water — to make an injectable solution.
In plain terms
The volume of water you add does not change how much peptide is in the vial. It changes the concentration, and therefore how many syringe units correspond to a given dose. Adding 2 mL instead of 1 mL to the same vial halves the concentration and doubles the volume you draw.
Add the water slowly down the side of the vial rather than jetting it onto the powder, and swirl rather than shake. Peptides are proteins; mechanical shearing and foaming degrade them.
Why it matters
Reconstitution volume is the single most common source of dosing errors, because it silently changes what "10 units" means.
Guides that use this term
How much bacteriostatic water to add, why the volume changes what a “unit” means, and the handling mistakes that silently degrade a peptide. With the arithmetic worked through.
A “unit” on an insulin syringe is a volume, not an amount of drug. Here is how mg, mcg, mL and units relate — and why copying someone else’s unit count is the most dangerous shortcut in peptides.
Sources
Educational reference only. Pepperz does not provide medical advice, diagnosis, treatment, prescribing guidance, or dosing recommendations.