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For the GHK-Cu 100 mg vial. Enter the bacteriostatic water you add and the amount you want, and see exactly where to draw on the syringe, in units and mL.
1 mg = 1,000 mcg. Type any amount, or tap a common one.
Almost all insulin-style syringes are U-100. Check the packaging if you're not sure.
Draw to
| In each draw | Amount |
|---|
What each mark on the syringe holds with this mix.
GHK-Cu is a copper-binding tripeptide studied in research on collagen signaling and tissue remodeling. CoreVionRX supplies it as a 100 mg vial, which is 10 times the mass of a typical 10 mg peptide vial.
That high mass changes the math: with 3 mL of bacteriostatic water the vial is about 33.3 mg/mL, so even 1 mg is only 3 units. If your draws come out very small, add more water; the calculator suggests an amount that lands your target on a round, easy-to-read mark. For laboratory research use only.
View GHK-Cu 100 mg Read the GHK-Cu research guide All peptides calculator
Every reconstitution calculator uses the same three steps. Here they are in plain numbers, so you can check any result by hand.
mg in vial ÷ mL of water = mg/mL100 mg + 3 mL of bacteriostatic water = 33.33 mg/mL. The water changes the strength, not the amount of peptide.
amount you want ÷ strength = mLFor 2 mg: 2 ÷ 33.33 = 0.06 mL.
mL × 100 = units (U-100)0.06 mL × 100 = 6 units. On a U-100 syringe, 1 unit is always 0.01 mL, whatever the barrel size.
Same vial, different amounts of water. More water spreads the same peptide across more liquid, so each mark holds less and draws get bigger.
| Water added | Strength | 10 units holds | 2 mg = |
|---|---|---|---|
| 1 mL | 100 mg/mL | 10 mg | 2 units |
| 2 mL | 50 mg/mL | 5 mg | 4 units |
| 3 mL | 33.33 mg/mL | 3.33 mg | 6 units |
| 5 mL | 20 mg/mL | 2 mg | 10 units |
Each one opens with the right vial size and shows the numbers for that peptide.
There is no single correct amount: water changes the strength, not how much peptide is in the vial. For example, with 2 mL the vial is 50 mg/mL and every 10 units holds 5 mg; with 3 mL the vial is 33.33 mg/mL and every 10 units holds 3.33 mg. More water makes each draw larger and easier to measure. A common choice for this vial is 3 mL.
With 3 mL of water in the 100 mg vial, 2 mg is 6 units (0.06 mL) on a U-100 syringe. A different amount of water gives a different answer, so enter your own numbers in the calculator above.
At 2 mg per draw there are 50 draws (100 mg ÷ 2 mg). The water amount does not change this number, only the size of each draw.
Plan on about one week in the fridge (2–8°C) as a conservative standard. For longer, split the solution into single-use portions and freeze them, avoiding repeated freeze-thaw cycles. Keep the unmixed powder cold, dry and dark.
mcg and mg measure how much peptide you have (1 mg = 1,000 mcg). mL measures liquid. Units are just the markings on an insulin-style syringe: on a U-100 syringe, 1 unit = 0.01 mL, so 100 units = 1 mL.
No. 0.3 mL, 0.5 mL and 1 mL insulin syringes are all U-100: 1 unit is always 0.01 mL. Only the barrel size changes. Smaller barrels have finer markings, which makes small draws easier to read.
More detail: Reconstitution guide · Storage guide
Research peptides, blends and the bacteriostatic water to mix them.
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