Load a GHK-Cu vial, choose the water volume and read the concentration and syringe units. Arithmetic only, the amount is yours to enter.
Results
0 to 100 units
Fill in the three fields on the left to calculate.
Bacteriostatic water, 10ml →Understanding units
The calculator tells you how many units to draw. Here is exactly what a unit is, and why it means the same thing on every insulin syringe.
On a U-100 insulin syringe one unit is a hundredth of a millilitre. So 10 units is 0.1 mL, and 100 units is 1 mL. Units simply make very small volumes easier to read off the barrel.
It does not matter which insulin syringe you pick up. Drawing to 20 units pulls the same 0.2 mL on a 0.3 mL, a 0.5 mL or a 1 mL syringe. The tick marks never change size.
What changes between syringes is how many of those marks fit on the barrel. A bigger syringe is not a bigger unit, it is just more room.
Example: a 20-unit draw is 0.2 mL on all three syringes above. The only difference is how much empty barrel is left behind it.
The full guide
The GHK-Cu calculator guide
How the GHK-Cu calculator works
GHK-Cu is a copper complex of the tripeptide glycyl-histidyl-lysine, supplied as a lyophilized powder. This GHK-Cu calculator takes the vial strength and the bacteriostatic water you add, then gives the concentration, the volume per amount and the syringe reading. It opens on a 50mg vial with 5mL of water and has a 100mg preset as well. The amount field starts empty. What goes in it is decided by the protocol a researcher is working to.
GHK-Cu reconstitution: planning water for a high-mass vial
GHK-Cu vials hold far more mass than most peptide vials, so the same water volume gives a much stronger solution. That affects how many units a given amount occupies:
- 50mg vial in 2mL gives 25mg/mL, and 1mg is only 4 units
- 50mg vial in 5mL gives 10mg/mL, and 1mg is 10 units
- 100mg vial in 5mL gives 20mg/mL, and 1mg is 5 units
- 100mg vial in 10mL gives 10mg/mL, and 1mg is 10 units
The last line uses a full 10mL vial of bacteriostatic water, so check how much you have before choosing it. The calculator flags any reading under 2 units, and with a high-mass vial that is the warning to watch for.
GHK-Cu dosage calculator: milligrams to units
Divide the amount by the concentration to get the volume in mL, then multiply by 100 for units. At 10mg/mL, 1mg is 0.1mL, which is 10 units. The doses-in-vial figure divides the vial mass by the amount. Because the vial mass is large, that number can be big, and the in-use window of the water becomes the practical limit. A mixed GHK-Cu solution is typically blue, which comes from the copper and is not a sign of contamination.
Verify the vial and keep notes
Every figure starts from the strength printed on the vial, so confirm it against the certificate of analysis for your batch. Healio publishes each one on the research page, and how to read a certificate of analysis explains which figures actually prove something. Once the vial is mixed, write the water volume, the concentration and the date on the label. Our guide to reconstituting peptides covers the handling, and how long bacteriostatic water lasts covers the in-use window.
GHK-Cu for sale from Healio is stocked in 50mg and 100mg vials. Copper peptides covers the history, and GHK-Cu peptide benefits covers the research. The tesamorelin calculator follows the same steps, and the all-peptide calculator takes any vial strength.
GHK-Cu calculator FAQ
How much bacteriostatic water goes in a 50mg GHK-Cu vial?
There is no single correct volume. 2mL gives 25mg/mL, 5mL gives 10mg/mL and 10mL gives 5mg/mL. The volume sets the concentration, which sets where an amount sits on the syringe scale.
Why is my reconstituted GHK-Cu blue?
The colour comes from the copper in the complex. A blue solution is normal for GHK-Cu. The certificate of analysis for your batch is the document that confirms what is actually in the vial.
How do I convert GHK-Cu mg to units?
Divide the amount by the concentration to get mL, then multiply by 100. At 10mg/mL, 1mg is 0.1mL, which reads as 10 units on a U-100 syringe.
Why does the calculator warn about small readings with GHK-Cu?
Because the vial is high in mass, a small water volume gives a very strong solution, and an amount can land under 2 units, where one tick mark is a large share of the draw. Add water to move it up the scale.
Does the GHK-Cu calculator recommend an amount?
No. It converts the figures you enter and makes no recommendation. Healio supplies research compounds for laboratory use, so quantities belong to the protocol a researcher is working to.
Can I use this calculator for a copper peptide serum?
No. It is built for reconstituting a lyophilized vial in bacteriostatic water. A finished serum has its own stated concentration, and copper peptide serums explains why that figure is often missing.
Healio Peptides supplies research compounds intended for laboratory and research use only. This calculator performs concentration arithmetic on figures you enter. It does not recommend quantities, and nothing on this page is medical advice. These compounds are not intended for human consumption and these statements have not been evaluated by the FDA.