Skin & Connective Tissue

GHK-Cu Dosage Calculator

A copper-binding tripeptide; topical use has some human data, systemic use is unproven. Use the calculator below to convert your vial size, bacteriostatic water, and dose into the exact volume to draw and the mark on a U-100 insulin syringe.

Concentration
25000 mcg/mL
Draw per dose
0.040 mL
On a U-100 syringe
4 IU
Doses per vial
50

Tip: adding 5 mL of bacteriostatic water would put this dose on a clean, easy-to-read mark on a U-100 insulin syringe.

Educational math only — not medical advice, and not a dose recommendation. The dose above is the value you entered. Always follow a licensed clinician’s instructions. Investigational compounds are not FDA-approved.

How to use this calculator

  1. Vial size — the milligrams printed on your GHK-Cu vial (commonly 50 or 100 mg).
  2. Bacteriostatic water — how much you add to dissolve the powder. More water = a larger, easier-to-read draw at the same dose.
  3. Dose — the amount you intend to draw, in micrograms. This is your number, not a recommendation.
  4. Read the IU mark — on a U-100 insulin syringe, 1 IU = 0.01 mL. The calculator shows the exact tick to fill to.

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Educational math only — not medical advice, and not a dose recommendation. PeptidePanel does not promote, source, or supply any compound. GHK-Cu is discussed for educational purposes; investigational agents are not FDA-approved. Always consult a licensed clinician.