Peptide dose calculator

Give us three details: the amount of medicine in your vial, the water you added and your dose. The units you need to fill are shown for a U-100 insulin syringe.

mg
mL
Dose unit
Your syringe
0102030405060708090100

Answer the three questions to see the units to draw, marked on this scale.

Here, you can learn to read your syringe. It doesn't pick a dose for you; that comes from your doctor, your nurse or the product label.

The usual kind is a U-100 insulin syringe: 100 units fill 1 mL. On the side of the syringe, each unit is marked by one small line. Most of them come in three sizes: 30, 50 and 100 units.

An example: 5 mg in the vial, 2 mL of water, a 250 mcg dose

Imagine 5 mg of peptide in your vial, the medicine inside that bottle (mg means milligrams). Your dose is 250 mcg; you mix in 2 mL of water, where mL means milliliters. A microgram (mcg) is far smaller than a milligram; 1 mg equals 1,000 mcg.

With this dose, the syringe is filled to the 10-unit line. Above, the calculator works this out, so you will not have to do the sums yourself.

Peptide calculators

You get the same calculator on each page, plus a units chart for one medicine.

Mixing guides and a peptide conversion calculator

Each of these pages converts one unit into another and guides you through every step. To reconstitute a peptide is to mix water with the dry powder in the vial.

Bacteriostatic water vial for mixing peptides

Bacteriostatic water, in brief

Sterile water plus a small amount of benzyl alcohol (0.9%) is what bacteriostatic water is. Benzyl alcohol stops germs from growing, so one bottle can serve several mixes. The CDC says to throw away a bottle 28 days after a needle first goes in, unless its label states a different date.

More on bacteriostatic water