These four labels are easy to mix up. Start with this: mg and mcg tell you how much peptide. mL and syringe units tell you how much liquid.
mg = milligrams of peptide
A vial marked 10 mg claims 10 milligrams in the whole vial. That is not an instruction to use 10 mg at one time.
mcg = micrograms of peptide
This is a smaller unit. 1 mg = 1,000 mcg. So 0.5 mg and 500 mcg are the same amount.
mL = milliliters of liquid
This tells you the amount of water or other liquid. A 10 mg vial and 1 mL of water describe two different things. You cannot change mg into mL without knowing how much peptide is in each mL.
U-100 units = the syringe marks
On a U-100 syringe, 100 units = 1 mL; 10 units = 0.1 mL. Smaller U-100 syringes may end at 30 or 50 units, but use the same scale. Check the syringe label: these conversions are for U-100 markings.
One simple math example
If 10 mg is in a total of 2 mL after mixing, each mL contains 5 mg. An entered dose of 0.5 mg would be 0.1 mL, or 10 U-100 units. This illustrates the numbers; it does not select a dose.
What about blends or lab results?
For a blend, the total mg includes all ingredients. See the blend guide. To check labeled mg against tested mg, see JD BioWorks’ COA guide.
Next: enter your numbers in the calculator or see the visual math.
A separate scientific review date has not been recorded for this article. How we publish and correct sources →