What is peptide reconstitution?

Reconstitution is the process of dissolving a lyophilised (freeze-dried) peptide powder into bacteriostatic water to create an injectable solution. The concentration depends on how much BAC water is added.

What is bacteriostatic water?

Bacteriostatic water (BAC water) is sterile water containing 0.9% benzyl alcohol, which prevents bacterial growth in multi-dose vials. It is the standard solvent for peptide reconstitution.

How many units on an insulin syringe is 1mg of peptide?

This depends on your reconstitution concentration. If you add 1mL BAC water to a 2mg vial, the concentration is 2mg/mL. A 250mcg dose would be 12.5 units on a U100 insulin syringe. The calculator works this out automatically.

Is the peptide reconstitution calculator free?

Yes — completely free, no account required. Designed for research purposes to ensure accurate dose calculation.

Peptide Reconstitution Calculator

Calculate reconstitution concentration, dose volume and total doses from your peptide vial.

Peptide Details

Peptide Amount (mg)

BAC Water Added (ml)

Desired Dose (mcg)

Results

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mcg/ml

Concentration

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Volume per Dose

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On 100IU Syringe

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doses

Total Doses

⚠️ This calculator provides estimates only. Results are for educational and informational purposes. Not medical advice. Consult a qualified healthcare professional before changing your nutrition or supplementation. For research use only where applicable.