We're a new shop and everything is live and shipping — if anything ever goes wrong, chat with a live human and we'll get it fixed right away.
Single Vial PeptidesFree USA shipping on every orderFree 3ml bac water at checkout

Bac water calculator

How much bac water do you add to a peptide vial? Choose any Single Vial product, like NAD+ or GHK-Cu, or type a size, then pick a target strength.

Already added water?

Common bac water amounts for this vial

Bac waterStrength

How to use the bac water calculator

  1. Pick a vial or type the mg printed on the label.
  2. Choose the strength you want, in mg per mL.
  3. Read how many mL of bacteriostatic water to add.

Bac water questions

How much bac water do I add to a 50mg GHK-Cu vial?

It depends on the strength you want. 5 mL gives 10 mg per mL. 2 mL gives 25 mg per mL.

What is bacteriostatic water?

Sterile water with 0.9% benzyl alcohol, used to dissolve freeze-dried research material.

Does more water change the mg in the vial?

No. The mg stays the same. More water only lowers the mg per mL.

Does this calculator suggest a dose?

No. It only does volume and concentration math for laboratory research.

Laboratory research use only. Not for people or animals.