Kisspeptin

Kisspeptin is an endogenous peptide signal involved in the hormonal network governing reproduction. It has been investigated for its relationship to fertility, pubertal development, and disturbances of reproductive endocrine function.

Kisspeptin peptides derive from a precursor encoded by the KISS1 gene. Their biological activity helps connect hypothalamic signaling with pituitary and gonadal function, contributing to sexual maturation and reproductive physiology.

Kisspeptin influences the release of gonadotropin-releasing hormone (GnRH), an upstream signal in reproductive endocrine regulation. Research examines how this signaling affects pubertal development and the coordination of reproductive hormone activity.

1. 01

   Molecular target

2. 02

   Cellular signal

3. 03

   Biological process

LEVEL 03 · Early human research

Small or early-stage human studies exist, with limited certainty and reproducibility.

Evidence levels reflect the state of documented research only. They are not rankings of popularity, quality or suitability, and a higher level never implies that a compound is an approved medicine.

The source guide presents kisspeptin as an important component of reproductive hormone regulation and discusses potential fertility-related applications. It also describes possible relevance to pubertal timing and endocrine conditions, without supplying study details in the extracted material. The guide characterizes reported clinical tolerability favorably while urging caution in the context of polycystic ovary syndrome, hormone-responsive malignancies, and other hormonal disorders.

Source: The Complete Guide to Peptides: Unlocking the Secrets to Health, Healing and Longevity — Hack Smith, Chapter 6, Introduction to Peptides (page references not verified)

Summarised in our own wording from the cited reference. The reference is a popular guide, not peer-reviewed literature; its statements are reported here as source claims rather than established facts.

Dosage, reconstitution and administration guidance is deliberately excluded from this platform.

The extracted material does not establish whether the proposed reproductive applications produce clinically meaningful benefits. Without identifiable studies, the quality of the human evidence and its applicability to specific conditions remain unclear.

Safety data are limited, and the guide's favorable tolerability statement should not be interpreted as proof of an absence of important risks. Effects on reproductive hormone signaling warrant particular caution when evaluating relevance to existing endocrine disease or hormone-responsive cancers. This information is educational and is not medical advice.

Research-stage compound unless otherwise established by a competent authority. Regulatory classification differs between jurisdictions and can change over time; nothing here indicates marketing authorisation.

Primary reference for this entry:

The Complete Guide to Peptides: Unlocking the Secrets to Health, Healing and Longevity — Hack Smith, Chapter 6, Introduction to Peptides (page references not verified)

Suggested literature search terms taken from the source. They are search starting points, not citations to specific studies.

• “Kisspeptin GnRH secretion and fertility”
• “Kisspeptin clinical trials reproductive health”
• “Kisspeptin and delayed puberty treatment”

Editorial status

source reviewed

Last updated

2026-09-14

Last reviewed

2026-09-13

Language

EN