gHK-Cu calculator
100 mg in 5 mL = 20 mg/mL; 10 units on a U-100 syringe holds 2 mg.
Sizes on sale: 50mg, 100mg. Choose a vial, the water and the amount per draw; prices are the lowest current US offers.
price, vial size and certificate correction
Lowest current US offer for this size.
Most 2–15 mg vials hold 3 mL.
From the lot certificate; it replaces the label amount.
20 mg/mL
10 units holds 2 mg
- concentration
- 20 mg/mL
- per unit
- 200 mcg per unit
- full draws per vial
- —
- cost per draw
- —
the working
- 100 mg ÷ 5 mL = 20 mg/mL
If this is a prescription, the dose and volume on your pharmacy label take priority. Ask your pharmacist about any mismatch.
cheapest way to buy it
| vendor | size | price | $/mg | checked | calculate with this vial, or view it |
|---|---|---|---|---|---|
| LA Peptidesfeatured partnerCOA 101.34 mg | 100mg | $39.99 | $0.40 | 2026-11-03 | view, GHK-Cu 100mg at LA Peptides, opens in a new tab |
| Amino USA | 100mg | $50.00 | $0.50 | 2026-11-06 | view, GHK-Cu 100mg at Amino USA, opens in a new tab |
| Amino USA | 50mg | $30.00 | $0.60 | 2026-11-06 | view, GHK-Cu 50mg at Amino USA, opens in a new tab |
| Nova Peptide Supply | 100mg | $69.99 | $0.70 | 2026-11-06 | view, GHK-Cu 100mg at Nova Peptide Supply, opens in a new tab |
| Cenexa Labs | 100mg | $71.99 | $0.72 | 2026-11-06 | view, GHK-Cu 100mg at Cenexa Labs, opens in a new tab |
| American Peptides | 100mg | $75.00 | $0.75 | 2026-11-06 | view, GHK-Cu 100mg at American Peptides, opens in a new tab |
| Nova Peptide Supply | 50mg | $39.99 | $0.80 | 2026-11-06 | view, GHK-Cu 50mg at Nova Peptide Supply, opens in a new tab |
| American Peptides | 50mg | $50.00 | $1.00 | 2026-11-06 | view, GHK-Cu 50mg at American Peptides, opens in a new tab |
In-stock US offers checked in the last 7 days, before shipping. The featured partner is a paid placement and is labelled; order here is by price per mg.
human trials
GHK-Cu dosing evidence
Not approved as a drug; human evidence is topical only: a randomized venous-ulcer trial of a 0.4% tripeptide-copper cream (no benefit over placebo, PMID 1495150) and a randomized trial of daily GHK-Cu gel (Iamin) in diabetic neuropathic ulcers (PMID 17147644); neither abstract gives a reproducible dose, and no injectable human study exists. PeptideTech does not list unsourced doses; the GHK-Cu research profile lists the published studies.
GHK-Cu 100mg in 5 mL
amount to syringe units
| amount | mL | U-100 units | U-40 units |
|---|---|---|---|
| 100 mcg | 0.005 | 0.5 | 0.2 |
| 250 mcg | 0.0125 | 1.25 | 0.5 |
| 500 mcg | 0.025 | 2.5 | 1 |
| 1 mg | 0.05 | 5 | 2 |
| 2 mg | 0.1 | 10 | 4 |
| 2.5 mg | 0.125 | 12.5 | 5 |
| 5 mg | 0.25 | 25 | 10 |
One unit on a U-100 syringe is 0.01 mL; on a U-40 it is 0.025 mL.
every GHK-Cu vial size on sale
reconstitution chart
| vial | 1 mL water | 2 mL water | 3 mL water | 5 mL water |
|---|---|---|---|---|
| 50 mg | 50 mg/mL 10 units = 5 mg | 25 mg/mL 10 units = 2.5 mg | 16.667 mg/mL 10 units = 1.667 mg | 10 mg/mL 10 units = 1 mg |
| 100 mg | 100 mg/mL 10 units = 10 mg | 50 mg/mL 10 units = 5 mg | 33.333 mg/mL 10 units = 3.333 mg | 20 mg/mL 10 units = 2 mg |
10 units on a U-100 syringe is 0.1 mL. Every cell is exact arithmetic: amount ÷ water.
what the numbers mean · where they come from
terms and sources
- Label amount or measured amount. The calculator starts from the amount printed on the vial. A lot certificate’s measured content (net peptide content, in mg) can replace it for the vial that was tested. HPLC purity is a share of peak area, not a mass, so a purity-only correction is shown as an estimate. See HPLC, certificate of analysis and how to read a peptide COA.
- Concentration. Amount in the vial ÷ water added. Terms: reconstitution, bacteriostatic water, lyophilized.
- Syringe units. A volume: 0.01 mL per unit on a U-100 syringe, 0.025 mL on U-40. Units say nothing about the compound until the concentration is known.
- Cost per draw. Vial price × amount per draw ÷ vial amount, from the price per mg of a current offer. Offers come from the GHK-Cu price comparison; certificates from the COA library.
Arithmetic only, on the numbers entered. Amounts from labels or trials are cited references, not recommendations; PeptideTech does not give personal use instructions and does not test products.
short answers
GHK-Cu calculator questions
How much bacteriostatic water do I add to GHK-Cu 100mg?
What changes the calculated concentration?
What doses of GHK-Cu were used in research?
What does GHK-Cu cost per mg?
How much GHK-Cu is really in the vial?
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