GHK-Cu dose calculator

Quick math example

A 50 mg vial mixed with 5 mL gives 10 mg/mL. A 2 mg dose is 0.2 mL, which equals 20 units on a U-100 syringe.

How the GHK-Cu calculation works

GHK-Cu is labelled in milligrams per vial. Concentration is the total mg divided by BAC water volume, and per-dose volume is your target divided by that concentration.

Larger vials are common for GHK-Cu because of its broader use in cosmetic and topical formulations; the calculator math handles the higher mg amounts the same way.

• 50 mg vial = 50,000 mcg total
• 50,000 mcg / 5 mL = 10,000 mcg per mL
• 2,000 mcg target = 0.2 mL draw

GHK-Cu 50 mg vial with 5 mL example

A 50 mg GHK-Cu vial mixed with 5 mL gives 10 mg/mL, or 10,000 mcg/mL.

A 2 mg (2,000 mcg) dose is 0.2 mL, which equals 20 units on a U-100 syringe. A 1 mg dose would be 0.1 mL (10 units).

• 50 mg / 5 mL = 10 mg/mL
• 2,000 mcg / 10,000 mcg per mL = 0.2 mL = 20 U-100 units
• 1,000 mcg / 10,000 mcg per mL = 0.1 mL = 10 U-100 units

GHK-Cu 100 mg vial with 5 mL example

A larger 100 mg vial mixed with 5 mL gives 20 mg/mL, or 20,000 mcg/mL — double the strength of the 50 mg example.

At this concentration a 2 mg dose is only 0.1 mL (10 units). A stronger vial keeps draws small even for larger doses.

• 100 mg / 5 mL = 20 mg/mL
• 2,000 mcg / 20,000 mcg per mL = 0.1 mL = 10 U-100 units
• A stronger vial keeps the same dose at a smaller volume

Topical vs injectable framing

Topical GHK-Cu products are typically pre-formulated and do not require this math. The calculator is intended for situations where you are reconstituting a lyophilized vial yourself, and it reports mg/mL concentration rather than the percentage strength used on cosmetic labels.

Frequently asked questions

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