What is Kisspeptin-10?
Kisspeptin 10 is a short research peptide made of the last 10 amino acids of kisspeptin, a family of peptides encoded by the KISS1 gene. The longest form, kisspeptin-54, was first described under the name metastin. The shorter fragments share the same C-terminal end, which is the part that binds the kisspeptin receptor, known as KISS1R or GPR54.
Its sequence is Tyr-Asn-Trp-Asn-Ser-Phe-Gly-Leu-Arg-Phe, amidated at the C-terminus. You will also see it written as KP-10, kisspeptin 10 or simply kisspeptin on supplier labels, so check the label to confirm which form a vial contains.
In the lab, kisspeptin is studied for its place in reproductive hormone signaling. This page does not describe any use in people. It does one job: the math of reconstituting a Kisspeptin-10 vial with bacteriostatic water and reading the result on a U-100 syringe.
How much BAC water for a Kisspeptin-10 vial?
Research vials are most often labeled 5 mg or 10 mg of freeze-dried powder. The amount printed on the vial never changes; the water you add decides the concentration. The chart below shows micrograms per unit on a U-100 syringe for common water volumes.
| BAC water | 5 mg vial | 10 mg vial |
|---|---|---|
| 1 mL | 50 mcg/unit 5 mg/mL | 100 mcg/unit 10 mg/mL |
| 2 mL | 25 mcg/unit 2.5 mg/mL | 50 mcg/unit 5 mg/mL |
| 3 mL | 16.67 mcg/unit 1.667 mg/mL | 33.33 mcg/unit 3.333 mg/mL |
| 5 mL | 10 mcg/unit 1 mg/mL | 20 mcg/unit 2 mg/mL |
Each cell shows mcg per unit on a U-100 syringe (100 units = 1 mL) and the resulting concentration.
Read across a row to compare vial sizes at the same water volume, or down a column to see how extra water spreads the same powder thinner. More water always means fewer micrograms in each unit. There is no single correct volume, but volumes that divide evenly into the vial’s milligrams give cleaner numbers, which makes a kisspeptin 5mg or 10 mg vial easier to track. For every common vial size side by side, see the BAC water to peptide ratio chart.
Worked example: Kisspeptin 10 reconstitution in syringe units
The calculator runs three steps. Vial mg ÷ water mL gives the concentration. The amount you enter ÷ that concentration gives the volume in mL. Volume in mL × 100 gives U-100 units. For example, if the amount you already have is 100 mcg, and the vial is 5 mg with 2 mL of water added:
The math: 5 mg ÷ 2 mL = 2.5 mg/mL (2,500 mcg/mL), which is 25 mcg per unit. 100 mcg ÷ 2,500 mcg/mL = 0.04 mL = 4 units on a U-100 syringe.
That amount is an arbitrary figure chosen because it comes out clean, not a suggestion. The most common error in any kisspeptin 10 reconstitution calculation is mixing up mg and mcg. Because 1 mg = 1,000 mcg, a result that is 1,000 times too big or too small almost always points to a unit mix-up rather than a math problem. The mg to mcg conversion guide walks through that step.
Kisspeptin 10 dosage calculator: what the numbers mean
People searching for kisspeptin dosage or kisspeptin 10 dosage usually want to know how many units on the syringe match an amount. That is what this page answers. You bring the amount; the calculator converts it into mL and units based on your vial size and the water you actually added. It does not set, suggest or check a dose, a schedule or a frequency, and nothing here should be read that way.
Use the chart to see how your water volume changes the micrograms in each unit, then enter your own numbers in the calculator above. If a result looks odd, you can check the calculator math by hand with the same formula and a pen.
Units are the same size on every U-100 syringe: 100 units = 1 mL and 1 unit = 0.01 mL. A 0.3 mL or 0.5 mL syringe simply holds fewer of them, so the unit count from the calculator reads the same on each.
Kisspeptin reconstitution notes from suppliers
Kisspeptin reconstitution follows the same general pattern as most freeze-dried peptides, but the product labeling controls the details. Some suppliers specify bacteriostatic water as the diluent, while others list sterile water. Some suppliers specify adding the liquid slowly down the inside wall of the vial and swirling gently rather than shaking. Storage after mixing, including temperature and how long the solution is kept, varies by product, so follow the label and a qualified professional.
A few points apply to any reconstituted vial:
- Write the water volume and the date on the vial so the chart and the calculator match what is actually inside.
- Bacteriostatic water contains 0.9% benzyl alcohol. It slows the growth of some bacteria, but it does not sterilize and does not replace aseptic technique. See what bacteriostatic water is for the details.
- An opened multi-dose vial is commonly dated and discarded within 28 days unless the manufacturer specifies a different date.
Is Kisspeptin-10 FDA-approved?
Kisspeptin-10 is not an FDA-approved drug. Vials sold online are labeled for research use only and carry no FDA-approved labeling, so identity, purity, sterility and stability depend entirely on the supplier. Two products with the same name can differ in salt form, fill amount and recommended diluent.
A correct calculation cannot confirm what is in a vial. It only tells you how the numbers on the label relate to the water you added and the marks on your syringe. To run the same math for other research peptides, browse the peptide library.
Kisspeptin-10 FAQ
What is kisspeptin 10?
Kisspeptin-10 is a research peptide made of the last 10 amino acids of the kisspeptin chain encoded by the KISS1 gene. It binds the kisspeptin receptor, also called GPR54. Research-labeled vials are not FDA-approved products.
How much BAC water goes in a kisspeptin 5mg vial?
There is no single correct amount. The water volume only changes the concentration. The chart on this page shows the micrograms per syringe unit for several water volumes so you can see how each choice changes the math. Follow the product labeling for the diluent and volume.
Is this a kisspeptin dosage calculator?
It converts an amount you already have into mL and U-100 syringe units. It does not recommend or check any dose, schedule or frequency.
Does a 10 mg vial need twice the water of a 5 mg vial?
Not necessarily. With the same water volume, a 10 mg vial is simply twice as concentrated. Doubling the water keeps the concentration the same as a 5 mg vial with half that volume.
Can I use a 0.3 mL or 0.5 mL syringe with the calculator?
Yes, if it is a U-100 syringe. Units are the same size on every U-100 syringe; smaller syringes only hold fewer units.