Peptides
Kisspeptin: reproductive hormones and the limits of current evidence
How does it work?
Kisspeptin signals through its receptor to stimulate gonadotropin-releasing hormone, which can change luteinizing hormone (LH), follicle-stimulating hormone (FSH), and downstream sex hormones. “Kisspeptin” names a family that includes kisspeptin-10 and kisspeptin-54, not one interchangeable product. [1,2]
What do studies show?
Small human experiments found that kisspeptin-10 raised LH and FSH in healthy men, while responses in women depended on context and schedule. A separate randomized crossover study tested kisspeptin-54 in men with hypoactive sexual desire disorder and found changes in sexual-brain responses and some reported outcomes. These are early signals for particular preparations, not proof that an uncharacterized research vial treats infertility or low desire. [1,2]
Safety
Hormonal responses vary by form, sex, cycle stage, and route. Fertility or hormone concerns deserve clinical evaluation before trying to manipulate this pathway. Published short-term infusions cannot establish the purity or long-term safety of a supplier vial.
DOSE STATUS
How much?
EVIDENCE CONTEXT
Why?
The cited evidence does not establish a dose for this use or product.
No effective and safe dose has been established for the unspecified “kisspeptin” product in this catalog. As a research example, investigators gave kisspeptin-10 to small groups of men by intravenous bolus at 0.3–1.0 nmol/kg and measured hormone responses; other studies used continuous infusion or kisspeptin-54. These are controlled study exposures, not a recommended or transferable self-use schedule. I could not verify an attributable anecdotal protocol for the exact unspecified formulation. [1,2]
Sources & further reading
- Kisspeptin-10 reproductive-hormone study in people (opens in a new tab)pubmed.ncbi.nlm.nih.gov
- Randomized kisspeptin-54 sexual-desire study (opens in a new tab)pubmed.ncbi.nlm.nih.gov