Kisspeptin-10 is the shortest active form of kisspeptin, a hormone that signals the brain to release GnRH. It is used in research and is not FDA approved.
Also known as: Metastin 45-54.
Powder vials are usually labeled 5 mg or 10 mg.
Here is the math for a 5 mg vial mixed with 5 mL of bacteriostatic water, drawing 100 mcg with a U-100 insulin syringe (1 mL = 100 units).
5 mg ÷ 5 mL = 1 mg/mL100 mcg ÷ 1 mg/mL = 0.1 mL0.1 mL × 100 = 10 units| Amount | Volume | U-100 syringe |
|---|---|---|
| 50 mcg | 0.05 mL | 5 units |
| 100 mcg | 0.1 mL | 10 units |
| 200 mcg | 0.2 mL | 20 units |
Adding more water doesn't change how much Kisspeptin-10 is in the vial. It only spreads it over more liquid, so each draw is bigger and easier to read.
| Water added | Concentration | Volume | U-100 syringe |
|---|---|---|---|
| 3 mL | 1.67 mg/mL | 0.06 mL | 6 units |
| 5 mL | 1 mg/mL | 0.1 mL | 10 units |
For any other vial size or amount, the free peptide reconstitution calculator works backwards from the amount you want and suggests a water volume that lands on a clean syringe mark.
The only measured human half-life for kisspeptin-10 comes from dosing into a vein: about 4 minutes (Jayasena 2011). No study reports a half-life or time to peak after an injection under the skin. In the one study that gave it under the skin (healthy women, at doses much larger than typical), blood levels stayed raised for up to about 4 hours. The 30 minutes the app uses is a modeling estimate, not a measured value.