Kisspeptin

Kisspeptin – HPG Axis and Reproductive Neuroendocrine Research Peptide

Kisspeptin (often supplied as kisspeptin‑10 or kisspeptin‑54) is a hypothalamic signaling peptide that activates the KISS1R (GPR54) receptor to drive pulsatile gonadotropin‑releasing hormone (GnRH) secretion and downstream LH/FSH release. As a central activator of the hypothalamic‑pituitary‑gonadal (HPG) axis, kisspeptin is a key tool in models of puberty onset, fertility restoration, sex‑steroid regulation, and emerging psychosexual and metabolic applications.

Key features

• Master HPG‑axis regulator: Kisspeptin neurons provide the primary excitatory drive to GnRH neurons, governing LH/FSH secretion, sex‑steroid production, and the timing of puberty and ovulation.

• Self‑limiting, pulsatile signaling: Exogenous kisspeptin typically produces physiologic, pulse‑like activation of GnRH/LH rather than continuous overstimulation, allowing detailed study of feedback dynamics and desensitization.

• Reproductive and fertility focus: Clinical and translational studies have explored kisspeptin in hypothalamic amenorrhea, IVF trigger protocols, hypogonadism, and other reproductive disorders where upstream stimulation of the axis is desired.

• Psychosexual and metabolic relevance: Research shows kisspeptin can modulate sexual brain processing, libido, and aspects of mood and metabolism, linking reproductive hormones with limbic and metabolic circuits.

  
  

Research applications

Kisspeptin is used in experimental systems investigating:

• Puberty and reproductive endocrinology, including GnRH/LH pulsatility, pubertal timing, and restoration of reproductive function in models of functional hypothalamic suppression.

• Fertility and assisted reproduction, where kisspeptin is studied as an alternative trigger for oocyte maturation and as an upstream modulator of ovulatory and spermatogenic processes.

• Psychosexual function and low libido, leveraging fMRI and clinical data showing altered limbic activation, sexual arousal metrics, and subjective desire following kisspeptin administration.

• Oncology and metabolism, reflecting kisspeptin’s origins as a metastasis‑suppressor (KISS1) and its emerging roles in tumor biology and glucose–insulin regulation.

  
  

Recommended handling

• For controlled laboratory research use only, by qualified professionals.

• Store in a cool, dry environment protected from light; follow institutional SOPs for peptide storage, reconstitution, aliquoting, and disposal.

• Investigators should consult current literature for model‑specific dosing, choice of analog (Kp‑10 vs Kp‑54), and timing relative to sampling of LH/GnRH or imaging endpoints.

  
  

Important disclaimer

All compounds sold by Rocky Peptide Chain, including Kisspeptin, are for research use only. They are not intended for human consumption, medical use, diagnostic purposes, or treatment of any disease or condition. No claims are made or implied regarding fertility enhancement, libido optimization, mood improvement, or therapeutic benefit. Researchers are solely responsible for appropriate handling, experimental design, and compliance with all applicable regulations.