RECONSTITUTION CALCULATOR
Calculate exact concentration and injection volumes when mixing peptides
Reconstituting peptides means mixing freeze-dried peptide powder with bacteriostatic water.
The math determines your concentration (mcg/ml) and tells you exactly how much to draw in your syringe for each dose.
Get the concentration wrong and every dose is off. This calculator does the math instantly - enter your peptide amount (mg), water amount (ml), and target dose (mcg). Get your exact injection volume.
How peptide reconstitution works:
You receive peptides as lyophilized powder in a vial. Before you can inject, you must add bacteriostatic water. The amount of water you add determines concentration.
Example: 5mg peptide + 2ml water = 2,500mcg/ml concentration
If you need 250mcg per dose: 250mcg ÷ 2,500mcg/ml = 0.10ml to inject
More water = lower concentration = larger injection volumes. Less water = higher concentration = smaller injection volumes. Neither is better - choose based on your target dose size and syringe precision.
HOW
What you need:
Peptide vial (powder form)
Bacteriostatic water (0.9% benzyl alcohol)
3ml syringe for drawing water
Alcohol swabs
Refrigerator for storage
Reconstitution process:
Step 1: Remove plastic cap from peptide vial. Wipe rubber stopper with alcohol swab, let dry 10 seconds.
Step 2: Draw your chosen water amount into a 3ml syringe (typically 1-3ml).
Common amounts:
1ml for high concentration (smaller injections)
2ml for medium concentration (balanced)
3ml for low concentration (easier to measure small doses)
Step 3: CRITICAL TECHNIQUE - Aim needle at the inside wall of the vial, NOT directly at the powder. Inject water slowly down the glass wall. This prevents damage to peptide chains.
Step 4: DO NOT SHAKE. Let vial sit for 2-3 minutes. Powder dissolves on its own. Gentle swirling in circular motion is okay if needed.
Step 5: Solution should be clear. Cloudiness = contamination or damaged peptide. Don't use cloudy solutions.
Step 6: Refrigerate immediately at 2-8°C (36-46°F). Write reconstitution date on vial. Use within 2-4 weeks.
Why bacteriostatic water, not sterile water?
Bacteriostatic water contains benzyl alcohol preservative that prevents bacterial growth.
You're drawing multiple doses from one vial over weeks. Sterile water lacks preservative - bacteria can grow between uses.
Never use tap water or distilled drinking water. Not sterile. Will contaminate and destroy your peptide.
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