Lab arithmeticGHK-CuNot approved (research only)
GHK-Cu 50 mg: dosing evidence and reconstitution math
A 50 mg vial of GHK-Cu mixed with 2 mL of diluent is 25 mg/mL, so 10 units on a U-100 syringe (0.1 mL) contain 2.5 mg.
Is there an established dose?
No FDA label or published human trial defines a dose of GHK-Cu, so we do not publish one. Online "protocols" for it are not evidence.
- GHK-Cu profile: FDA status, research volume and registered trials.
50 mg vial concentration table
Concentration = vial content ÷ diluent volume. A U-100 insulin syringe holds 1 mL in 100 units, so 1 unit = 0.01 mL.
| Diluent | Concentration | Per 10 units (0.1 mL) | Per 1 unit |
|---|---|---|---|
| 1 mL | 50 mg/mL | 5 mg | 500 mcg |
| 2 mL | 25 mg/mL | 2.5 mg | 250 mcg |
| 3 mL | 16.7 mg/mL | 1.667 mg | 167 mcg |
| 5 mL | 10 mg/mL | 1 mg | 100 mcg |
Arithmetic only; it assumes the vial contains exactly what the label states. Independent tests often find vials under- or over-filled, which is why a lot's certificate of analysis matters.
Syringe units for a given amount
Units on a U-100 syringe needed to draw each amount from this 50 mg vial, by diluent volume. The amounts are fractions of the vial (1/50, 1/20, 1/10, 1/5), not dose suggestions.
| Amount | 1 mL diluent | 2 mL diluent | 3 mL diluent |
|---|---|---|---|
| 1 mg | 2 units | 4 units | 6 units |
| 2.5 mg | 5 units | 10 units | 15 units |
| 5 mg | 10 units | 20 units | 30 units |
| 10 mg | 20 units | 40 units | 60 units |
Units = amount ÷ concentration × 100. Draws above 100 units exceed a 1 mL syringe.
What the research covers
A PubMed search for "GHK-Cu"[tiab] returned 83 records (51 from the last five years), 1 indexed as clinical trials when checked on October 2026.
- Regenerative and Protective Actions of the GHK-Cu Peptide in the Light of the New Gene Data.
- The potential of GHK as an anti-aging peptide.
- Injectable Peptide Therapy: A Primer for Orthopaedic and Sports Medicine Physicians.
- Topically applied GHK as an anti-wrinkle peptide: Advantages, problems and prospective.
- Therapeutic Peptides in Orthopaedics: Applications, Challenges, and Future Directions.
ClinicalTrials.gov lists 3 registered studies (search), including:
Where research vials are listed
43 suppliers in our directory list GHK-Cu (A–Z): Amino Amigos, Ascension Peptides, Atomik Labz, Backroad Aminos, Biocollex Research, BioGenix Peptides, BioLongevity Labs, Biotech Peptides, and 35 more. A listing is not a quality endorsement; ask for a lot-specific certificate of analysis.
Storage & handling
Follow the storage statement on the product sheet or certificate of analysis. Lyophilized (freeze-dried) peptides are generally kept cold, dry and away from light; once reconstituted, stability is shorter and depends on the compound and diluent. Bacteriostatic water contains 0.9% benzyl alcohol as a preservative; sterile water does not.
Frequently asked questions
How much bacteriostatic water for a 50 mg GHK-Cu vial?
The diluent volume only sets the concentration: 1 mL gives 50 mg/mL, 2 mL gives 25 mg/mL and 3 mL gives 16.7 mg/mL. Smaller volumes are more concentrated, so each syringe unit holds more.
How much GHK-Cu is in 10 units?
At 2 mL of diluent, 10 units (0.1 mL) of a 50 mg vial contain 2.5 mg; at 1 mL they contain 5 mg.
What is the dose of GHK-Cu?
No FDA label or published human trial defines a dose of GHK-Cu, so we do not publish one. Online "protocols" for it are not evidence.
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