Kisspeptin-10

Kisspeptin-10 is a short peptide fragment of kisspeptin, a signaling molecule that sits at the top of the reproductive hormone cascade. Research examines its role in initiating gonadotropin-releasing hormone (GnRH) release and the overlap between that signaling and circuits associated with connection and desire. It has also been studied in bone, heart, neuronal and metabolic research settings, largely in animal and cell models.

Research describes kisspeptin as acting on hypothalamic neurons to trigger GnRH release, which positions it upstream of the downstream hormonal sequence of the hypothalamic-pituitary-gonadal axis rather than at its end. Kisspeptin-10 binds the kisspeptin receptor, also called Gpr54. One cell study reported neuroprotective effects that appeared to occur independently of this receptor, suggesting additional mechanisms remain under investigation.

Beyond reproductive hormone control, Kisspeptin-10 has been studied for bone loss through osteoclast Gpr54 signaling, collagen content in the myocardium, protection of cultured neurons against alpha-synuclein-mediated mitochondrial apoptosis, and sperm quality after cryopreservation in buffalo. Reviews have also discussed emerging roles for kisspeptin in metabolism, glucose homeostasis and prolactin regulation. Most of this work is preclinical, so findings should be viewed as early evidence.

Human safety data for Kisspeptin-10 are limited, and adverse events are not summarized in the cited studies. Because the peptide acts upstream of the reproductive hormone cascade, broad effects on hormonal signaling are expected by mechanism. Kisspeptin-10 has also been described as a doping-relevant peptide, and analytical research has investigated methods for detecting it in urine using liquid chromatography high-resolution mass spectrometry.

Research protocols have used 100 to 500 mcg per administration, given once daily before sleep by the subcutaneous route. The reported cycle in these protocols is 30 days on followed by 30 days off. These figures describe research use only and are not recommendations. Each CoreX order ships with a protocol guide for laboratory reference.