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Enter your vial's composition and diluent volume to see what a single draw delivers of all four components. In a blend you set one component's dose and the rest follow the fixed ratio — the stack itself is covered in the KLOW compound guide.
A KLOW vial containing 50 mg GHK-Cu, 10 mg BPC-157, 10 mg TB-500 and 10 mg KPV — 80 mg in total — reconstituted with 4 mL of bacteriostatic water gives 20 mg/mL overall: 12.5 mg/mL of GHK-Cu at 125 mcg per unit on a U-100 syringe, and 2.5 mg/mL of each of the other three at 25 mcg per unit. To take 2 mg of GHK-Cu, draw the syringe to 16.0 units (0.16 mL). That same draw also delivers 0.4 mg of BPC-157, 0.4 mg of TB-500 and 0.4 mg of KPV, because in a blend you can only set the dose of one component — the rest follow the fixed ratio. At that draw the vial provides about 25 doses.
Defaults: the 50:10:10:10 mg ratio is the KLOW compound page's; 2 mg of GHK-Cu is a user-chosen worked example, not a KLOW dose. The widget calculates the GHK-Cu share of the vial. The calculator picks the water so your dose lands on a line of your syringe — or set your own.
How many mg of each is on the label?
Dose based on
Bacteriostatic water — not sure how much? Let the calculator pick.
Desired dose of GHK-Cu
2 mg = 2,000 mcg
Pick the one in your hand.
Not sure? Look at the biggest number printed on the barrel — 30, 50 or 100.
Check the box says U-100. Syringes for pet insulin (U-40) look the same but their lines measure 2.5× more liquid. This calculator is for U-100 syringes only.
One draw carries every compound.
Each line on this syringe = 2 units = 250 mcg of GHK-Cu.
| Peptide | Vial amount | Concentration | Dose per draw | Doses from vial |
|---|---|---|---|---|
| GHK-Cu ★ | 50 mg | 12,500 mcg/mL | 2 mg | 25 |
| BPC-157 | 10 mg | 2,500 mcg/mL | 400 mcg | 25 |
| TB-500 | 10 mg | 2,500 mcg/mL | 400 mcg | 25 |
| KPV | 10 mg | 2,500 mcg/mL | 400 mcg | 25 |
Two KLOW compositions are in circulation and neither is a typo. The compound page describes 50 / 10 / 10 / 10 mg — GHK-Cu, BPC-157, TB-500, KPV, 80 mg total — which is the range tested vials sit inside. The site's general blend calculator carries a much smaller 10 / 5 / 2 / 5 mg preset, 22 mg in total. The figures on this page describe the first.
| Composition | GHK-Cu | BPC-157 | TB-500 | KPV | Total |
|---|---|---|---|---|---|
| Compound page (this page's reference) | 50 mg | 10 mg | 10 mg | 10 mg | 80 mg |
| Blend-calculator preset | 10 mg | 5 mg | 2 mg | 5 mg | 22 mg |
The second vial is not a rounding of the first: it holds roughly a quarter of the mass in a different ratio, so a draw calculated from this page would deliver far less of every component. Read your own vial's label first, then enter its numbers in the calculator above.
This is what separates a blend from four vials. You choose a draw volume; all four components arrive in that volume at their own concentrations. Targeting one sets the other three, whether or not those amounts are what you wanted — and with four components the chance that all four land where you would have put them is small.
| Draw at 4 mL dilution | Volume | GHK-Cu | BPC-157 | TB-500 | KPV |
|---|---|---|---|---|---|
| 8 units | 0.08 mL | 1.0 mg | 0.2 mg | 0.2 mg | 0.2 mg |
| 16 units (reference) | 0.16 mL | 2.0 mg | 0.4 mg | 0.4 mg | 0.4 mg |
| 40 units | 0.40 mL | 5.0 mg | 1.0 mg | 1.0 mg | 1.0 mg |
| 100 units (full barrel) | 1.00 mL | 12.5 mg | 2.5 mg | 2.5 mg | 2.5 mg |
Arithmetic, shown: each concentration is that component's mass ÷ diluent volume, and a U-100 unit is 0.01 mL. Because GHK-Cu is five times the mass of each other component, it is five times the amount in every draw — reaching 2.5 mg of KPV means drawing the full barrel and taking 12.5 mg of GHK-Cu with it. A fixed ratio is a ceiling as much as a convenience.
The diluent volume sets all four concentrations at once, so choose it for the component you intend to dose by. 4 mL into an 80 mg vial puts GHK-Cu at 12.5 mg/mL, where a 2 mg amount is a readable 16 units. Technique is covered once, elsewhere: reconstituting peptides step by step and the bacteriostatic water guide.
Blends are left out of the COA benchmarks, which cover single vials. A blend certificate reports a whole-vial purity figure plus per-component net content — a different measurement, shown on the KLOW compound guide instead, with every KLOW lab test on file.
There is no price per milligram either. An 80 mg vial and a 22 mg vial both labelled KLOW are different products, so dividing price by total mass compares things that are not comparable — a blend price is only meaningful beside the milligrams of each component it contains. There is no KLOW price page yet: prices for a blend have to be grouped by composition before they mean anything, and that grouping is not published for KLOW.
From a 50 / 10 / 10 / 10 mg vial in 4 mL — 12.5 mg/mL of GHK-Cu, 125 mcg per unit — 2 mg is 16 units (0.16 mL). That same draw also delivers 0.4 mg each of BPC-157, TB-500 and KPV.
No. A blend vial has a fixed ratio: you choose a draw volume, and all four components arrive in that volume at their own concentrations. Varying one independently requires separate vials, not a blend.
KLOW is GLOW with KPV added — GHK-Cu, BPC-157 and TB-500 plus a fourth component. The GLOW calculator covers the three-component version; the arithmetic here is the same with one more line.
Two are in circulation. The compound page describes 50 / 10 / 10 / 10 mg (GHK-Cu / BPC-157 / TB-500 / KPV, 80 mg total); the blend-calculator preset is 10 / 5 / 2 / 5 mg (22 mg total). Check your vial's label — the figures on this page describe the first.
Because an 80 mg vial and a 22 mg vial both labelled KLOW are different products. Dividing price by total mass compares things that are not comparable. A blend price only means something grouped by composition and quoted per vial, and that grouping is not published for KLOW, so there is no KLOW price figure here at all.