Laboratory research use only. Not for human consumption.
Peptide Lab

Tutorials

BAC water guide and calculator

Reconstitution guides for laboratory use. Vial amount, water volume, concentration, and measured draw volume.

BAC water guide

Work through the label, water volume, concentration, and recordkeeping steps before using the calculator.

01

Confirm the vial amount

Start with the labelled peptide amount in milligrams. Convert milligrams to micrograms by multiplying by 1,000.

Example: 10 mg equals 10,000 mcg before any water is added.

02

Choose the water volume

The amount of BAC water sets the concentration. More water lowers the concentration per mL.

Example: 10 mg mixed with 2 mL gives 5 mg/mL, or 5,000 mcg/mL.

03

Calculate draw volume

Divide the target amount by the concentration in mcg per mL.

On a 100 unit syringe, 1 mL equals 100 units.

04

Inject and mix

Add the BAC water to the peptide vial, then gently mix by swirling or rolling. Do not shake.

Use a new sterile syringe and needle for each vial. Do not reuse syringes.

Peptide storage after mixing

Before reconstitution

Peptides that have not been reconstituted with bacteriostatic water should be stored refrigerated until ready for use.

Reconstituted peptides

Once reconstituted with bacteriostatic or sterile water:

  • Store refrigerated at 2-8°C.
  • Avoid repeated freeze-thaw cycles.
  • Protect from direct light exposure.

BAC water calculator

Enter the vial amount, BAC water volume, and target amount to calculate concentration and draw volume.

This tool does not recommend any specific amount. It only converts the values entered.

Concentration

5 mg/mL

Per mL

5,000 mcg

Per syringe unit

50 mcg

Draw volume

0.05 mL

Calculator result

On a standard 100 unit syringe, draw to about 5 units.

That is 50 uL of liquid (~0.05 mL).

Vial estimate: 40 full injections at 250 mcg from this vial.

Formula used

These formulas explain the calculator output. They are arithmetic references for laboratory records, not dosing instructions.

mcg per mL = peptide mg x 1,000 / BAC water mL

mcg per unit = mcg per mL / 100

draw mL = target mcg / mcg per mL

mg to mcgconcentrationsyringe units