This page is provided for research and educational purposes only and does not provide medical advice, diagnosis, treatment recommendations, dosing instructions, or instructions for human use. Research findings should be interpreted within the population, model, formulation, route, outcomes, and study design reported by each cited source.
Kisspeptin (10 mg Vial)
Kisspeptin (also known as metastin) is a naturally occurring neuroendocrine peptide that plays a pivotal role in human reproduction by stimulating gonadotropin-releasing hormone (GnRH) secretion[1]. This small peptide binds to the GPR54 receptor in the hypothalamus, triggering pulsatile GnRH release and downstream secretion of luteinizing hormone (LH) and follicle-stimulating hormone (FSH)[2]. Originally identified as a metastasis-suppressor gene product, kisspeptin has become a major focus in reproductive endocrinology[3].
Quick Reference
What is Kisspeptin?
Research overview based on the cited scientific literature.
• Goal: Support physiological reproductive hormone signaling through upstream GnRH stimulation[1].
• Storage: Lyophilized frozen; reconstituted refrigerated; avoid repeated freeze–thaw.
Storage Instructions
Proper storage preserves peptide quality.
• Lyophilized: Store at −20 °C (−4 °F) in dry, dark conditions with desiccant if possible[15].
• Reconstituted: Refrigerate at 2–8 °C (35.6–46.4 °F); stable up to ~4 weeks[16]; avoid freeze–thaw.
• Allow vials to reach room temperature before opening to reduce condensation uptake.
How is Kisspeptin studied?
Kisspeptin is an upstream trigger for the reproductive hormone cascade. Upon subcutaneous injection, kisspeptin rapidly binds to kisspeptin receptors (GPR54) on GnRH neurons in the hypothalamus, causing immediate release of GnRH[7]. This in turn stimulates the anterior pituitary to secrete LH and FSH, which act on the gonads to boost sex steroid production and support gametogenesis[8]. Importantly, kisspeptin’s action is GnRH-dependent—if GnRH release is blocked, kisspeptin cannot induce LH/FSH secretion[9]. This confirms that kisspeptin works by unlocking the body’s own GnRH stores, providing a more physiologic pattern of hormone release compared to direct GnRH or hCG administration[10].
What does the research report about Kisspeptin?
Research on kisspeptin has revealed multiple potential benefits for reproductive health.
• Physiological Sex Hormone Stimulation: Increases endogenous testosterone and estrogen levels by amplifying the body’s own LH/FSH signals without suppressing the HPG axis[11].
• Fertility Restoration: Shows promise in functional hypothalamic amenorrhea by rekindling GnRH/LH pulsatility and resuming menstrual cycles[12].
• IVF Ovulation Trigger: Can induce robust LH surge to mature oocytes while potentially lowering the risk of ovarian hyperstimulation syndrome compared to traditional hCG triggers[13][14].
• Safety Profile: Generally well tolerated; occasional mild injection-site reactions (redness/itch) may occur with subcutaneous administration.
Research Limitations / Risk Notes
Avoid prolonged continuous use to prevent tachyphylaxis[6]. Kisspeptin’s action is GnRH-dependent—if GnRH release is blocked, kisspeptin cannot induce LH/FSH secretion[9]. Research applications include reproductive endocrinology, functional hypothalamic amenorrhea, and IVF ovulation-trigger studies; findings from these contexts should not be treated as interchangeable.
Important Note
This content is provided for scientific research and educational purposes only. It does not provide medical advice, diagnosis, treatment, dosing, or administration instructions. The compounds discussed may be investigational and are not presented as approved for human use.
