PT-141
FDA-Approved Ingredient
Libido and sexual desire
Learn moreKisspeptin
Commonly chosen for: Natural hormone support, libido, fertility
What it is
Kisspeptin sits at the very top of your hormone chain of command — it's the signal that starts the process ending in testosterone or estrogen production. Because it acts at the beginning of the chain, it supports your own hormone production rather than replacing it. It's been studied for fertility, libido, and low testosterone that starts in the brain rather than the testes. Still at the research stage.
How it works
Kisspeptin sits at the very top of your hormone chain of command. It is the signal that starts the process ending in testosterone or estrogen production.
Because it acts at the beginning of the chain, it prompts your own hormone production rather than replacing it, leaving your body's feedback loops intact.
It has been studied for fertility, libido, and low testosterone that starts in the brain rather than the testes. It remains at the research stage.
Who it's typically for
- People who want to support their own hormone production rather than replace it.
- People working with a provider on fertility or libido.
- People comfortable with a compound still at the research stage.
What to know before starting
Read this part properly
Common side effects
Reported effects are limited and mostly mild — injection-site reactions, headache, flushing — but that reflects limited human study rather than established safety.
Who should avoid it
Not appropriate in pregnancy or breastfeeding unless directed within fertility care, or with hormone-sensitive cancers. Discuss any pituitary condition with your provider.
Consult requirement
No scheduled video visit required — reviewed and prescribed by a licensed provider. Add a consult if you have a chronic condition or take other medication.
This page is educational and is not medical advice. Nothing here is intended to diagnose, treat, cure or prevent any disease. Where you see the FDA-Approved Ingredient mark, the active ingredient is FDA-approved in at least one prescription medication. Products without it are prescribed based on your provider's clinical judgment and current research. Compounded preparations are not FDA-approved products in either case.
Often paired with
Questions people ask
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Start through the secure consultation workflow when the intake link becomes active.
Treatment is only available if determined medically appropriate by a licensed provider.