KLOW reconstitution calculator
Opens on an 80 mg vial, 2 mL of bacteriostatic water and a 4 mg dose, amounts recorded for KLOW in the compound library. Change any field and the draw updates.
Also known as KLOW-CU, GHK-Cu / BPC-157 / TB-500 / KPV.
Original calculator
The classic all-in-one form
Every input on one card, the way the original site worked.
Typical vial strength and dose filled in; recorded examples appear as one-tap presets.
- Draw 10 units for 4 mg doses of KLOW: GHK-Cu / BPC-157 / TB-500 / KPV Blend.
- Concentration 40 mg/mL (80 mg in 2 mL). Each vial holds 20 doses of 0.1 mL.
For research and educational use. This calculator does not provide medical advice.
How the numbers work for KLOW
An 80 mg vial of KLOW with 2 mL of bacteriostatic water is 80 / 2 = 40 mg/mL. A 4 mg dose is 4 / 40 = 0.1 mL, which is 10 units on a U-100 syringe, or the same number of clicks on a pen. With 3 mL of water instead, the concentration is 26.67 mg/mL and the same dose is 15 units. At that dose the vial holds 20 doses.
The formulas are the same for every compound: concentration is the vial amount divided by the water, the draw is the dose divided by the concentration, and a U-100 unit is 0.01 mL. They are written out on the methodology page.
KLOW units at a glance
Syringe units for the amounts recorded for KLOW, from an 80 mg vial, across the water volumes people most often use. These are recorded examples used for the arithmetic, not recommendations; a draw under 6 units is hard to measure repeatably and more water fixes that.
| Dose | 1 mL water80 mg/mL | 2 mL water40 mg/mL | 3 mL water26.67 mg/mL |
|---|---|---|---|
| 200 mcg | <1 units0.003 mL | 1 units0.005 mL | 1 units0.007 mL |
| 250 mcg | <1 units0.003 mL | 1 units0.006 mL | 1 units0.009 mL |
| 2.5 mg | 3 units0.031 mL | 6 units0.063 mL | 9 units0.094 mL |
| 4 mg | 5 units0.05 mL | 10 units0.1 mL | 15 units0.15 mL |
| 8 mg | 10 units0.1 mL | 20 units0.2 mL | 30 units0.3 mL |
Where the amounts come from
The doses above are recorded amounts from the KLOW entry in the compound library, which lists the sources behind them, labels each as clinical, preclinical or community-reported, and states what the evidence can and cannot support. The vial strength is the one most often listed by suppliers. Nothing on this page is medical advice.
Common questions about KLOW
- Is KLOW an FDA-approved medicine?
- KLOW (GHK-Cu, BPC-157, TB-500 and KPV) is not an approved product anywhere. It is a vendor combination; each ingredient's own status applies (all four were reviewed by FDA for compounding and placed in category 2 before their nominations were withdrawn), and mixing them in one vial has not been evaluated by any regulator.
- How much bacteriostatic water do I add to an 80 mg vial of KLOW?
- There is no single right amount: the water sets the concentration and the size of the draw, not the dose. This page opens on 2 mL, which makes 40 mg/mL and puts a 4 mg dose at 10 units on a U-100 syringe. With 1 mL the same dose is 5 units; with 3 mL it is 15 units. More water gives a larger, easier-to-read draw, as long as the vial can hold it.
- How many units is 4 mg of KLOW?
- At 40 mg/mL (80 mg in 2 mL of water), 4 mg is 0.1 mL, which is 10 units on a U-100 insulin syringe or 10 clicks on a peptide pen. At any other concentration the number changes; the units table on this page gives the other common water volumes.
- How many doses are in an 80 mg vial of KLOW?
- At 4 mg per dose, an 80 mg vial holds 20 doses. The water volume changes the size of each draw, not the number of doses in the vial.
- Where do the KLOW amounts on this page come from?
- They are amounts recorded for KLOW in the compound library (https://peptidescalculator.com/compound-library/klow), which lists the sources behind them and labels each as clinical, preclinical or community-reported. They are shown for the arithmetic, not as recommendations, and the vial strength is the one suppliers list most often. Nothing on this page is medical advice.