How many units is 4 mg of KLOW blend?

It depends entirely on how much water you added. In a 80 mg vial reconstituted with 2 mL, the concentration is 40 mg/mL, so 4 mg is 0.1 mL, which is 10 units on a U-100 insulin syringe. In the same vial with 1 mL of water it is 5 units, and with 3 mL it is 15 units.

How much bacteriostatic water for a 80 mg KLOW blend vial?

2 mL is the usual choice. It gives 40 mg/mL, which puts the commonly reported range of 1 mg to 6 mg between roughly 2.5 and 15 units. Aim for a draw between about 10 and 50 units, where the barrel is easiest to read, and add or remove water to get there.

How many doses are in a 80 mg vial?

Divide 80 by your dose. At 4 mg that is 20 doses, which at 5 days on, 2 off is 28 days.

How many units of KLOW per day?

The commonly reported loading dose is 10 units a day, five days a week, from an 80 mg vial reconstituted with 2 mL. That is 4 mg of blend. Maintenance is usually reported at 5 units three times a week.

What is in 10 units of KLOW?

From 80 mg in 2 mL: 2.5 mg GHK-Cu, 500 mcg KPV, 500 mcg BPC-157 and 500 mcg TB-500. Inferred from the ratio on the label.

KLOW blend dosage calculator

KLOW is GLOW plus KPV: 80 mg in one vial. Enter your water and a dose in mg of total blend, and every draw is split back into the four peptides.

IndependentThis site does not sell peptides and is not owned by a vendor. Every other calculator on page one of Google belongs to a shop.

The maths is openThe formula is written out on this page and the code behind it is a single file with an automated test suite.

How it earnsAffiliate links on one clearly marked page, and nowhere else. Never inside the calculator.

ReviewedDose ranges and half-life figures last checked 3 September 2026.

Dose to units, at the standard setup

Dose	Draw	U-100 units	Doses per vial	Vial lasts
1 mg	0.025 mL	2.5 units	80	112 days
2 mg	0.05 mL	5 units	40	56 days
3 mg	0.075 mL	7.5 units	26	36 days
4 mg	0.1 mL	10 units	20	28 days
5 mg	0.125 mL	12.5 units	16	22 days
6 mg	0.15 mL	15 units	13	18 days

Based on a 80 mg vial reconstituted with 2 mL of bacteriostatic water, which is 40 mg/mL, drawn on a standard U-100 insulin syringe, 5 days on, 2 off.

About the numbers above

KLOW is the GLOW blend with 10 mg of KPV added: 50 mg GHK-Cu, 10 mg KPV, 10 mg BPC-157 and 10 mg TB-500, 80 mg in total, in a fixed 5:1:1:1 ratio. KPV is a tripeptide fragment of alpha-MSH studied for its anti-inflammatory effect in the gut. None of the four is an approved medicine and the blend is sold for research.

The most widely copied protocol reconstitutes the 80 mg vial with 2 mL, giving 40 mg/mL, and reports a loading phase of 10 units (4 mg of blend) five days a week for four weeks, then 5 units (2 mg) three times a week. A 10 unit draw at that concentration delivers 2.5 mg GHK-Cu and 500 mcg each of KPV, BPC-157 and TB-500. Reported cycles run 8 to 12 weeks on and 4 to 8 off. The KLOW dosage chart page lays out both phases at three water volumes.

What is in each draw

The vial is 50 mg GHK-Cu + 10 mg KPV + 10 mg BPC-157 + 10 mg TB-500, a fixed 5:1:1:1 ratio. Every draw contains all of them in that proportion. Split below for 80 mg in 2 mL (40 mg/mL). The per-component figures are inferred from the label ratio, not measured.

Draw	Total blend	GHK-Cu	KPV	BPC-157	TB-500
5 units	2 mg	1.25 mg	0.25 mg	0.25 mg	0.25 mg
10 units	4 mg	2.5 mg	0.5 mg	0.5 mg	0.5 mg
15 units	6 mg	3.75 mg	0.75 mg	0.75 mg	0.75 mg
20 units	8 mg	5 mg	1 mg	1 mg	1 mg
25 units	10 mg	6.25 mg	1.25 mg	1.25 mg	1.25 mg
30 units	12 mg	7.5 mg	1.5 mg	1.5 mg	1.5 mg

A 80 mg vial at different water volumes

If the draw feels awkward to read, change the water rather than the dose. The dose stays the same; only the mark moves.

Vial	BAC water	Concentration	Draw	U-100 units	Doses/vial
80 mg	1 mL	80 mg/mL	0.05 mL	5 units	20
80 mg	2 mL	40 mg/mL	0.1 mL	10 units	20
80 mg	3 mL	26.67 mg/mL	0.15 mL	15 units	20

All rows above assume a 4 mg dose and a standard U-100 insulin syringe, where 100 units = 1 mL.

How long it stays in you

Not well characterised in humans. This site only draws a decay curve where a half-life is actually documented in humans, so there is none here. Treat any precise figure you see elsewhere for KLOW blend with suspicion.

Common questions

How many units is 4 mg of KLOW blend?: It depends entirely on how much water you added. In a 80 mg vial reconstituted with 2 mL, the concentration is 40 mg/mL, so 4 mg is 0.1 mL, which is 10 units on a U-100 insulin syringe. In the same vial with 1 mL of water it is 5 units, and with 3 mL it is 15 units.
How much bacteriostatic water for a 80 mg KLOW blend vial?: 2 mL is the usual choice. It gives 40 mg/mL, which puts the commonly reported range of 1 mg to 6 mg between roughly 2.5 and 15 units. Aim for a draw between about 10 and 50 units, where the barrel is easiest to read, and add or remove water to get there.
How many doses are in a 80 mg vial?: Divide 80 by your dose. At 4 mg that is 20 doses, which at 5 days on, 2 off is 28 days.
How many units of KLOW per day?: The commonly reported loading dose is 10 units a day, five days a week, from an 80 mg vial reconstituted with 2 mL. That is 4 mg of blend. Maintenance is usually reported at 5 units three times a week.
What is in 10 units of KLOW?: From 80 mg in 2 mL: 2.5 mg GHK-Cu, 500 mcg KPV, 500 mcg BPC-157 and 500 mcg TB-500. Inferred from the ratio on the label.

Buying KLOW blend? The where to buy page lists the vendors this site uses and what to check before ordering, and Peptide Bureau keeps the ranked vendor scorecard.

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Read this before you use the numbers. This is a unit-conversion tool. It converts a vial strength and a volume of bacteriostatic water into a concentration, a draw volume and a mark on an insulin syringe. It does not tell you what to take, whether to take it, or whether a compound is safe for you. Most of the compounds listed here are sold for laboratory research use and are not approved for human use. Nothing on this site is medical advice. Dosing decisions belong with a licensed clinician who knows your history. Always confirm the strength printed on your own vial rather than trusting a preset.