Libido
Kisspeptin, simplified.
Also called Kisspeptin-10
Human studiesThe master switch for reproductive hormones, now being studied for fertility and desire.
- Size
- 10 amino acids (short form)
- How it is taken
- Injection or infusion (in studies)
- Status
- Research compound
What is it?
Kisspeptin sits at the top of the hormone chain that controls testosterone, estrogen and fertility.
What studies show
- In peopleIn people, it raises reproductive hormones and has been used to help trigger egg release in IVF studies.
- In peopleBrain-scan studies found it boosted brain activity linked to attraction and desire.
What we don’t know yet
- Whether it works as a real-world treatment for low libido.
Side effects and cautions
- Mostly short hospital studies so far.
Is it legal?
Not FDA-approved.
Common questions
What is Kisspeptin?
The master switch for reproductive hormones, now being studied for fertility and desire. Kisspeptin sits at the top of the hormone chain that controls testosterone, estrogen and fertility.
What does the research say about Kisspeptin?
In people, it raises reproductive hormones and has been used to help trigger egg release in IVF studies. Brain-scan studies found it boosted brain activity linked to attraction and desire.
Is Kisspeptin FDA approved?
Not FDA-approved.
What are the side effects of Kisspeptin?
Mostly short hospital studies so far.
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This page explains published research in plain language. It is not medical advice, a diagnosis, or a recommendation to take anything, and it does not give dosing. Most peptides here are not FDA-approved, and products sold online vary widely in purity. Rules around peptides are changing, so check the current status and talk with a licensed clinician before starting anything. Last reviewed 2026-09-26.