1Set Up Your Mix
16.667 mg/mL · 16667 mcg/mLYour Answer — GHK-Cu
50 mg in 3 mLThe studies behind this compound did not test timing or food state as variables, so we are not going to invent a rule. Pick a time you can keep to consistently.
2Week-By-Week Plan — GHK-Cu
Start low, work up| When | Dose | How Often | How Many mL | Draw To | Number Of Doses | Peptide Used |
|---|---|---|---|---|---|---|
| Weeks 1–2 | 1 mg | daily | 0.06 mL | 6 u | 14 | 14 mg |
| Weeks 3–4 | 2 mg | daily | 0.12 mL | 12 u | 14 | 28 mg |
| Week 5 onward per 4 weeks from here on |
3 mg | daily | 0.18 mL | 18 u | 28 | 84 mg |
3Common Doses — GHK-Cu
worked out for your mix| Level | Dose | How Often | How Many mL | Draw To | Doses In Vial |
|---|---|---|---|---|---|
| Reported concentration | 0.5–2% concentration | 1–2× daily | Set by body weight — can't be turned into a single amount to draw | ||
| Low reported (SC) | 1 mg | 1× daily | 0.06 mL | 6 u | 50 doses |
| Standard (SC) | 2 mg | 1× daily | 0.12 mL | 12 u | 25 doses |
| Upper reported | 3 mg | 1× daily | 0.18 mL | 18 u | 16 doses |
About GHK-Cu
Cosmetic & DermalA copper-binding tripeptide present in human plasma, declining with age. The strongest evidence covers collagen synthesis, wound healing and skin remodelling. Copper-containing solutions are photosensitive and should not be mixed with certain diluents; check compatibility.
Buy GHK-Cu
SyringesU-100 insulin · 1 mL · 29–31G
Alcohol wipes70% isopropyl prep pads
Serum base — for topical mixesHyaluronic acid serum for mixing peptides into a serum
Electric cooler caseTSA-approved travel cooler — keeps mixed vials at fridge temperature
Storage caseHard carry case for vialsPaid affiliate links.
Common Questions — GHK-Cu
How much bacteriostatic water do I add to a 50 mg vial of GHK-Cu?
Adding 3 mL of bacteriostatic water to a 50 mg vial gives 16.7 mg/mL. That is the mix every number on this page is worked out from — change the water figure in the calculator and all the draw amounts update.
What dose of GHK-Cu is used in research?
Published and reported figures for GHK-Cu run from 1 mg to 3 mg, typically 1× daily. This site lists each figure with the source it came from rather than giving a single recommended number.
How many units on the syringe is a 1 mg dose of GHK-Cu?
At 16.7 mg/mL, a 1 mg dose is 6 units on a 1 mL U-100 insulin syringe. One vial at that mix gives about 50 doses.
How strong is the evidence behind these GHK-Cu doses?
GHK-Cu is graded clinical. Human trial or approved-label dosing has been published for this compound. We grade every compound on this site so you can weigh the numbers accordingly — the full method is on our editorial policy page.