GHK-Cu
How to reconstitute the 50 mg vial and convert any target dose into insulin units. Reconstitution math and unit conversions for the 50 mg vial. Most GHK-Cu evidence is topical; the injectable figures shown are community-reported and anecdotal.
No validated human dose. GHK-Cu is a research-use peptide with no FDA-approved dose. The reconstitution math below is exact measurement — a calculator, not advice. Any usage figures are community-reported and clearly labeled, and none of this is medical advice.
Calculate for your vial
Enter the mg on your GHK-Cu vial, the bacteriostatic water you added, and your target dose — it works out the exact units to draw on a U-100 insulin syringe, for whatever you personally have.
Reconstitution Calculator
Check the decimal. A misplaced decimal point here is a 10× dosing error. Re-read every number, and confirm your dose with a licensed clinician before you draw.
Educational only — not a dosing recommendation. This tool does the measurement math; it does not tell you what to take. On a U-100 insulin syringe, 100 units = 1 mL.
1 · Find your dose
Pick what you're using GHK-Cu for and how much bacteriostatic water you added — this pulls out the exact units to draw and how often people report using it.
to draw 1 mg–2 mg at 5 mL water
10 mg/mL · 100 mcg per unit
- How often
- Once daily
- Cycle
- ~20–30 day cycles (community)
2 · Reconstitute it cleanly, step by step
How to turn the 50 mg powder into a measured liquid with clean, sterile technique. More water means each insulin unit holds less peptide — easier to measure small amounts accurately.
1Swab the stoppers
Wipe the rubber top of each vial with an alcohol pad and let it air-dry.
2Draw the water
Pull your bacteriostatic water up into the insulin syringe.
3Reconstitute
Inject it slowly down the inside wall of the peptide vial — never straight onto the powder.
4Swirl to dissolve
Gently swirl until the powder fully dissolves into a clear liquid. Never shake.
5Equalize, then draw
To draw a dose: push in an equal amount of air first to equalize the pressure, then pull your dose.
- 1
Swab both tops
Wipe the rubber top of the bacteriostatic-water vial and the GHK-Cu vial stopper with a fresh alcohol pad, and let them air-dry. Never touch the needle or the stoppers after wiping.
Alcohol swab · let dry - 2
Draw the water
First pull 5 mL of air into the syringe and inject it into the bacteriostatic-water vial to equalize the pressure, then draw your 5 mL of water back out. Inject it into the GHK-Cu vial down the inside glass wall, not onto the powder.
5 mL BAC water - 3
Swirl, don't shake
Gently swirl the 50 mg vial until the powder fully dissolves into a clear liquid. Never shake — shaking can damage the peptide and foam the solution.
Swirl, don't shake - 4
Know your strength
The vial is now 10 mg/mL. Each unit on a U-100 syringe holds about 100 mcg.
10 mg/mL - 5
Re-swab & draw your dose
Wipe the stopper again. With a fresh insulin syringe, pull back 15 units of air and inject it into the vial to equalize the pressure, then draw 15 units (0.15 mL) for a 1.5 mg dose.
15 units - 6
Store it right
Keep the mixed vial in the fridge, away from light. Use a new sterile syringe every time, never share, and drop used sharps in a proper container.
Refrigerate · fresh needle
What each water volume gives you:
3 · Full units reference
Every bacteriostatic-water volume (rows) against every target dose (columns) — each cell is the U-100 units and the exact draw in mL. The highlighted row is the easiest volume to measure.
| BAC water | Concentration | Per unit | 1 mg | 1.5 mg | 2 mg |
|---|---|---|---|---|---|
| 2 mL | 25 mg/mL | 250 mcg | 4u0.04 mL | 6u0.06 mL | 8u0.08 mL |
| 3 mL | 16.67 mg/mL | 166.67 mcg | 6u0.06 mL | 9u0.09 mL | 12u0.12 mL |
| 5 mLeasy pick | 10 mg/mL | 100 mcg | 10u0.1 mL | 15u0.15 mL | 20u0.2 mL |
4 · Everyday usage
Most GHK-Cu evidence is for topical/cosmetic use. Injectable systemic use has no validated dose; the pattern below is community-reported only.
Systemic use (injected)
Community-reported · anecdotalA once-daily pattern some report for the injectable form, usually in short cycles.
- Reported amount
- 1 mg–2 mg≈ 10–20 units @ 5 mL
- Frequency
- Once daily
- Cycle
- ~20–30 day cycles (community)
Community-reported and anecdotal. The bulk of GHK-Cu research is on TOPICAL/cosmetic use; injectable systemic use is poorly characterized, has no validated dose, and is not a recommendation.
Frequently asked questions
How many insulin units is 1 mg of GHK-Cu from a 50 mg vial?
- Reconstituting a 50 mg vial with 5 mL of bacteriostatic water gives 10 mg/mL — about 100 mcg per unit. Drawing 1 mg is 0.1 mL, or 10 units on a U-100 insulin syringe. This is measurement math, not a dose recommendation.
How many insulin units is 1.5 mg of GHK-Cu from a 50 mg vial?
- Reconstituting a 50 mg vial with 5 mL of bacteriostatic water gives 10 mg/mL — about 100 mcg per unit. Drawing 1.5 mg is 0.15 mL, or 15 units on a U-100 insulin syringe. This is measurement math, not a dose recommendation.
Is injected GHK-Cu well studied?
- No. Most published GHK-Cu research is on topical or cosmetic use (skin, hair, and wound contexts). Injectable systemic use is largely anecdotal, has no validated human dose, and is not FDA-approved. Any figures here are community-reported; dosing decisions belong with a licensed clinician.
WikiPeps is a community reference. Reconstitution figures are deterministic measurement math; usage figures are sourced and labeled. Nothing here is medical advice, a recommendation, or an offer to sell peptides — dosing decisions belong with a licensed clinician.