GHK-Cu alone vs inside GLOW or KLOW: milligrams of GHK-Cu per draw at each vial and water volume, what rides along with it, and the copper in each.
"Glow vs GHK-Cu" and "GHK-Cu vs KLOW" are searched by people deciding between a single copper-peptide vial and one of the pre-mixed blends built around it. Read from the listed contents, the comparison turns on one fact: the blends contain the same 50 mg of GHK-Cu as the smallest single vial, so the question is not how much GHK-Cu each delivers but what arrives with it. This page works that out per draw, from the retail splits read on 2026-09-23 and the GHK-Cu record read on 2026-10-27. It reports; it does not suggest any vial for anyone.
The two blends are compared with each other on GLOW vs KLOW; GHK-Cu alone has its own dosage page and injection page.
The three vials
| Vial (listed split) |
GHK-Cu |
BPC-157 |
TB-500 |
KPV |
Total |
| GHK-Cu 50 mg |
50 mg |
— |
— |
— |
50 mg |
| GHK-Cu 100 mg |
100 mg |
— |
— |
— |
100 mg |
| GLOW |
50 mg |
10 mg |
10 mg |
— |
70 mg |
| KLOW |
50 mg |
10 mg |
10 mg |
10 mg |
80 mg |
No standard defines GLOW or KLOW; the split is whatever a given vial's label states, and every figure below changes if it differs.
GHK-Cu per draw, by vial and water
| Vial · water |
GHK-Cu concentration |
GHK-Cu in 10 units |
Units for 1 mg |
Units for 2 mg |
| GHK-Cu 50 mg · 2 mL |
25 mg/mL |
2.5 mg |
4 |
8 |
| GHK-Cu 50 mg · 3 mL |
16.7 mg/mL |
1.67 mg |
6 |
12 |
| GHK-Cu 50 mg · 5 mL |
10 mg/mL |
1 mg |
10 |
20 |
| GHK-Cu 100 mg · 2 mL |
50 mg/mL |
5 mg |
2 |
4 |
| GHK-Cu 100 mg · 3 mL |
33.3 mg/mL |
3.33 mg |
3 |
6 |
| GLOW or KLOW · 2 mL |
25 mg/mL |
2.5 mg |
4 |
8 |
| GLOW or KLOW · 3 mL |
16.7 mg/mL |
1.67 mg |
6 |
12 |
Units on a U-100 syringe = mg ÷ concentration × 100. The 50 mg single vial and the blends match row for row at the same water. The 1 and 2 mg columns are the figures on the clinic and telehealth pages quoted on the injection page, not studied doses.
What arrives with each milligram of GHK-Cu
| Drawn amount of GHK-Cu |
From the single vial |
Also from GLOW |
Also from KLOW |
| 1 mg |
nothing else |
0.2 mg BPC-157 + 0.2 mg TB-500 |
the same + 0.2 mg KPV |
| 2 mg |
nothing else |
0.4 mg BPC-157 + 0.4 mg TB-500 |
the same + 0.4 mg KPV |
| 2.5 mg |
nothing else |
0.5 mg BPC-157 + 0.5 mg TB-500 |
the same + 0.5 mg KPV |
These follow from the 5 : 1 : 1 (: 1) split and do not change with water. Set against the single-compound pages, 0.4 to 0.5 mg of BPC-157 sits inside the 250 to 500 mcg range vendor pages state for BPC-157 on its own, so a GHK-Cu-sized draw of a blend is also a BPC-157-sized draw. Going the other way, choosing a draw for a stated BPC-157 amount fixes the GHK-Cu at five times that. The blend calculator works any stated split.
Copper, vial by vial
Copper is about 15.8% of GHK-Cu's mass. Per milligram of GHK-Cu the copper is identical in every vial, about 0.16 mg, so 2 mg of GHK-Cu carries about 0.32 mg of copper from any of them. Per vial, the 50 mg single vial, GLOW and KLOW each carry about 7.9 mg, and the 100 mg vial about 15.8 mg; BPC-157, TB-500 and KPV contain no copper. These are formula-weight figures, not an assay of any product.
The evidence for each choice
For GHK-Cu alone by injection the human record is empty: no registered trial injects it, and a 2026 review for orthopaedic surgeons states that dosing, frequency and duration remain unknown. For the blends it is emptier still, since no trial of either blend, or of any pair of their components, was found. Choosing a blend over the single vial adds three or four compounds to each draw without adding any evidence about the combination. Mixing figures for each are on GHK-Cu reconstitution, GLOW reconstitution and KLOW reconstitution.
What is not established
Any studied dose of GHK-Cu by injection in people; any trial of GLOW or KLOW; whether the four peptides are stable together in one solution, for which no published data were found; and whether the listed split matches what a given vial contains, which only an assay would show. Medibact's GHK-Cu guide covers the compound. Decisions about whether to use any of them belong with a clinician.
