How many units is 100 mcg of Kisspeptin-10?

It depends entirely on how much water you added. In a 5 mg vial reconstituted with 2 mL, the concentration is 2.5 mg/mL, so 100 mcg is 0.04 mL, which is 4 units on a U-100 insulin syringe. In the same vial with 1 mL of water it is 2 units, and with 3 mL it is 6 units.

How much bacteriostatic water for a 5 mg Kisspeptin-10 vial?

2 mL is the usual choice. It gives 2.5 mg/mL, which puts the commonly reported range of 50 mcg to 500 mcg between roughly 2 and 20 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 5 mg vial?

Divide 5 by your dose. At 100 mcg that is 50 doses, which at once daily is 50 days.

How many units is 100 mcg of kisspeptin-10?

In a 5 mg vial with 2 mL of water, 4 units on a U-100 syringe. With 5 mL of water, 10 units.

Kisspeptin-10 dosage calculator

In a 5 mg vial with 2 mL of water (2.5 mg/mL), 100 mcg of Kisspeptin-10 is 4 units on a U-100 insulin syringe. Kisspeptin-10 is dosed in micrograms from a vial labelled in milligrams.

Reviewed 3 September 2026
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Dose to units at the usual vial and water

Dose	U-100 units	Draw	Doses per vial	Vial lasts
50 mcg	2 units	0.02 mL	100	100 days
100 mcg	4 units	0.04 mL	50	50 days
150 mcg	6 units	0.06 mL	33	33 days
200 mcg	8 units	0.08 mL	25	25 days
300 mcg	12 units	0.12 mL	16	16 days
500 mcg	20 units	0.2 mL	10	10 days

5 mg vial in 2 mL of bacteriostatic water (2.5 mg/mL), U-100 insulin syringe, once daily.

About Kisspeptin-10

Kisspeptin-10 is the shortest active fragment of kisspeptin, a hypothalamic peptide that triggers GnRH and therefore LH and testosterone release. It has been used as a research tool in human reproductive studies, where it was given as single subcutaneous or intravenous doses. It is not an approved medicine and vials are sold for research.

Reported use clusters at 100 to 300 mcg, but the published human data are single-dose studies rather than protocols, so treat any schedule as anecdote. A 5 mg vial with 2 mL of water is 2,500 mcg/mL, so 100 mcg is 0.04 mL, or 4 units.

The same 5 mg vial at other water volumes

If the draw is awkward to read, change the water, not the dose. The dose stays the same; only the mark moves.

Vial	BAC water	Concentration	Draw	U-100 units	Doses/vial
5 mg	1 mL	5 mg/mL	0.02 mL	2 units	50
5 mg	2 mL	2.5 mg/mL	0.04 mL	4 units	50
5 mg	3 mL	1.67 mg/mL	0.06 mL	6 units	50
10 mg	1 mL	10 mg/mL	0.01 mL	1 units	100
10 mg	2 mL	5 mg/mL	0.02 mL	2 units	100
10 mg	3 mL	3.33 mg/mL	0.03 mL	3 units	100

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

How long it lasts in the body

The half-life of Kisspeptin-10 is about 4 minutes. That is the time for the amount in your blood to halve, so after one half-life you are at 50 percent of the peak, after two you are at 25 percent, and after four you are at roughly 6 percent. It is gone within an hour or two. What it triggers (a growth hormone pulse, for instance) lasts longer than the peptide itself, which is why timing matters more than the exact number of minutes.

Common questions

How many units is 100 mcg of Kisspeptin-10?: It depends entirely on how much water you added. In a 5 mg vial reconstituted with 2 mL, the concentration is 2.5 mg/mL, so 100 mcg is 0.04 mL, which is 4 units on a U-100 insulin syringe. In the same vial with 1 mL of water it is 2 units, and with 3 mL it is 6 units.
How much bacteriostatic water for a 5 mg Kisspeptin-10 vial?: 2 mL is the usual choice. It gives 2.5 mg/mL, which puts the commonly reported range of 50 mcg to 500 mcg between roughly 2 and 20 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 5 mg vial?: Divide 5 by your dose. At 100 mcg that is 50 doses, which at once daily is 50 days.
How many units is 100 mcg of kisspeptin-10?: In a 5 mg vial with 2 mL of water, 4 units on a U-100 syringe. With 5 mL of water, 10 units.

IndependentThis site does not sell peptides and is not owned by a vendor.

The maths is openThe formula is on every page and in the methodology. The code is one file with an automated test suite, run before each deploy.

How it is fundedNo ads and no vendor links here. It is published by the team behind Peptide Bureau, which earns from affiliate links on its own site, and VialHaus, the same team's vial storage shop, which the storage notes link to.

ReviewedDose ranges and half-lives checked 3 September 2026.

Buying Kisspeptin-10?

Peptulator does not list, rank or link vendors. Whoever the supplier is, use the strength printed on your own vial and check the batch certificate of analysis before you rely on any number here.

The Kisspeptin guideDosing, evidence and side effects, at Peptide Bureau Read a syringeU-100 vs U-40, and the 2.5x error Build a full protocolThe stack builder at Peptide Bureau, about two minutes

Common conversions

The same three-step maths, pre-filled for the doses people ask about most. Units on a U-100 insulin syringe, where 100 units is 1 mL.

mg to units calculator Any dose at any concentration, both directions, with the full reference tables
Units to mg calculator What the units you drew are in milligrams
1 mg to units The most-asked conversion, at every common setup

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