Kisspeptin acts to control hormone secretion as it relates to reproduction. Kisspeptin can influence testosterone levels and sex-related behaviors like drive and motivation. Research also suggests it may help to reverse some of the effects of aging.

Product Usage: This PRODUCT IS INTENDED AS A RESEARCH CHEMICAL ONLY. This designation allows the use of research chemicals strictly for in vitro testing and laboratory experimentation only. All product information available on this website is for educational purposes only. Bodily introduction of any kind into humans or animals is strictly forbidden by law. This product should only be handled by licensed, qualified professionals. This product is not a drug, food, or cosmetic and may not be misbranded, misused or mislabled as a drug, food or cosmetic.

What is Kisspeptin-10?

Kisspeptin (a.k.a. metastin) is a naturally occurring protein in humans that plays important roles in hormone signaling during puberty and reproduction. It is also thought to alter mood and behavior, promote angiogenesis, and regulate kidney function. The peptide has also been found in the brain and is known to suppress tumor growth and metastasis (spread). The peptide is of greatest scientific interest for its ability to influence gonadotropin releasing hormone (GnRH).

Kisspeptin-10 Structure

Sequence: YNWNSFGLRF Molecular Formula: C63H83N17O14 Molecular Weight: 1302.4 g/mol PubChem CID: 25240297 Synonyms: KISS-1, Protein KISS-1, metastin, Kp-10 peptide

Kisspeptin-10 Research

Boosting Gonadotropin-Releasing Hormone

Gonadotropin-releasing hormone (GnRH) is synthesized in and released from GnRH neurons in the hypothalamus. It is the first hormone released in the hypothalamic-pituitary-gonadal axis and controls the release of follicle-stimulating hormone (FSH) and luteinizing hormone (LH) from the anterior pituitary gland.  GnRH is the primary driver of puberty and controls the maturation of gametes in the genitals. It is used therapeutically to control menstruation in select settings, as a treatment for precocious puberty, and as a continuous infusion in certain types of cancer.

Increasing Testosterone

By affecting circulating levels of LH and FSH, kisspeptin can alter testosterone levels. This alteration, however, appears to be sex specific. In men, kisspeptin increases testosterone levels while in women it has no discernible impact on testosterone. In one study, 6 men were administered a derivative of kisspeptin via IV. They showed a significant increase in plasma testosterone levels (nearly 3-fold) after just 90 minutes[1]. A different analog of kisspeptin has been found to alter the pulse frequency of LH in men, suggesting that kisspeptin helps to fine tune the normal pulsatile release of sex hormones. A study of healthy men given kisspeptin-10 revealed a rapid and dose-dependent increase in serum LH levels and a concomitant increase in testosterone levels. Kisspeptin-10 appears to achieve this feat by increasing the pulsatile release of LH. If given at high enough doses, kisspeptin-10 causes such rapid pulsation as to obscure individual pulses entirely, resulting in continuous LH release[2]. This finding opens the door for potential uses of kisspeptin and its analogues in a variety of settings from pregnancy to low testosterone levels and more.

Energy Balance

Kisspeptin neurons have long been known to be sensitive to the energy status of an individual. Both under-nutrition and severe over-nutrition can blunt the action of kisspeptin neurons in stimulating GnRH release. In fact, drastic changes in energy balance can lead to infertility in both men and women, a process that appears to be mediated by kisspeptin.

So it is well understood that kisspeptin production and release is sensitive to energy balance. What is becoming clearer, however, is that kisspeptin may itself regulate energy balance. This finding arose through the observation of mice in which the kisspeptin receptor (Kiss1r) was removed via genetic manipulation. These mice showed increased adiposity and reduced energy expenditure. It turns out that the kisspeptin receptor is found in adipose (fat) tissue and brown adipose tissue[3]. It should not come as a surprise that kisspeptin plays a role in energy balance as energy status and reproductive fitness have always been tightly linked. It seems that kisspeptin may be one link that helps to explain the neurochemical control that leads to energy modulating behavior in relation to reproduction.

Cancer Research

Twenty years ago, it was discovered that kisspeptin is capable of suppressing metastasis of melanoma (malignant skin cancer) by as much as 95%. It appears that the peptide produces this effect by reducing cancer cell migration. There is also some question as to whether kisspeptin can reduce cell adhesion and thereby prevent cancer cells from sticking to other tissues and invading them. Screening of a variety of metastatic cancer types reveals that breast, bladder, GI, prostate, pancreatic, ovarian, skin, and thyroid cancers all show changes (generally decreases) in kisspeptin levels, confirming that the peptide plays a role in the spread of cancer[4].

The interest in kisspeptin for the treatment of cancer has waxed and waned as a result of the incredible complexity of this peptide. Research is ongoing to understand exactly how the peptide can be manipulated, cut, recombined, and altered to produce effects in various cancer types. It is not so much that the peptide doesn’t work but rather than kisspeptin has so many effects that teasing out its precise impact on various cancer cells is difficult[5]. Dr. Floriana Morgillo implores researchers to take on the complexities of kisspeptin to realize the tremendous potential of this peptide to treat cancer. As she points out, kisspeptin could block metastasis in multiple organs and drastically reduce disease burden, adding years to lifespan of cancer patients and making it easier for current treatments to induce remission.

An interesting connection between kisspeptin, melatonin, and cancer was discovered only in the early months of 2020 when an experiment linked levels of the peptides to exposure to daylight. In the experiment, mice exposed to daylight and darkness showed drastically different levels of melatonin and kisspeptin. Those exposed to daylight had high kisspeptin levels and low melatonin levels. The opposite was true of those kept in the dark. To add to the experiment’s value, the mice were injected with melanoma cells. It turns out that the daylight mice had high tumor growth rates and tumor volume. No measure was made of metastasis. It appears that melatonin and kisspeptin are both involved in tumor suppression such that one influences the other, but the exact connection remains unknown[6]. This is just one example of the complex ways in which kisspeptin interacts with the body to alter tumor growth.

Studied Memory Enhancement

It appears that certain analogs to kisspeptin are important in the areas of the brain responsible for memory consolidation and orientation in 3-D space. Research in mice suggests that administration of these peptides can help to reverse the learning and navigational impairment often seen in ethanol intoxication[7]. This suggests that kisspeptin and its analogues play a role in the ability of neurons to encode information and may make these peptides of potential interest in offsetting learning deficits seen in certain genetic and chronic disease situations. While this research is in its early stages, it helps to widen our understanding of learning and push us further toward the development of nootropics that can help to stimulate both health and damaged brains to improve function.

Impact on Mood

Just like reproduction and energy status are interconnected, so too are reproduction and emotion interconnected. Given the role of kisspeptin in both reproduction and energy homeostasis, researchers questioned how the peptide might influence emotion and behavior. To test this connection, they compared kisspeptin to placebo administration in 29 healthy heterosexual men. Individuals given kisspeptin showed enhanced limbic brain activity. In particular, the individuals showed increased reward-seeking behavior, increased drive, and improved overall mood[8]. It would appear that kisspeptin plays a role in integrating sexual and emotional brain processing with the overall process of reproduction. These findings help to further our understanding of mood, motivation, and drive not just as they relate to sex, but as they relate to human behavior in general.

Kidney and Heart

Much is made of the role of kisspeptin in reproduction and reproductive hormone control. It comes as a bit of surprise then to learn that kisspeptin is also important in the kidney. Kisspeptin and its receptor are found in several locations throughout the kidney and are thought to play a role in signaling kidney function. Research in mice lacking the Kiss1 receptor reveals that the peptide is important in ensuring glomerular development during development though the exact nature of this action, whether direct or indirect, remains to be elucidated[9].

Though the exact role of kisspeptin in the kidney is not understood, it appears that it may relate to the protein’s larger overall role in controlling vascular development and vascular response to injury. Research in cardiovascular disease in mice suggests that kisspeptin may play an important role certain vascular beds and not others, acting to control vasoconstriction and even cardiac output in specific settings[9]. The impact of kisspeptin in both the kidney and cardiovascular system appears to be related to the effects the peptide has on angiogenesis and vascular function. This same trait may explain the role that kisspeptin plays in reducing metastasis of tumors. Understanding the finer points of how kisspeptin functions in blood vessels will help to move the peptide further into the therapeutic sphere.

Kisspeptin-10 Summary

Kisspeptin is a peptide that acts primarily, but not exclusively, in the brain to control hormone secretion as it relates to human reproduction. There is a great deal of interest in understanding how kisspeptin influences everything from testosterone levels to sex-related behaviors like drive and motivation.

For years it has also been understood that kisspeptin has the potential to influence the growth and metastasis of cancerous cells. Studies have been somewhat contradictory, however, leading to periods of waxing and waning interest in using kisspeptin as a treatment in chemotherapy regimens. The ability o the peptide to influence metastasis may be linked to its role in vascular growth and functioning. Right now, kisspeptin is the subject of a number of intensive trials aimed at deepening our understanding of this versatile and potentially life-saving peptide.

Kisspeptin-10 exhibits minimal to moderate side effects, moderate oral and excellent subcutaneous bioavailability in mice. Per kg dosage in mice does not scale to humans. Kisspeptin-10 for sale at   peptide Review hub is limited to educational and scientific research only, not for human consumption. Only buy Kisspeptin-10 if you are a licensed researcher.

Article Author

The above literature was researched, edited and organized by Dr. E. Logan, M.D. Dr. E. Logan holds a doctorate degree from Case Western Reserve University School of Medicine and a B.S. in molecular biology.

Kisspeptin-10 (Kp-10), also known as Metastin, is one of the most extensively researched reproductive-regulation peptides in endocrinology, neurobiology, fertility research, and hormone signaling. Researchers investigate Kisspeptin because of its central role in regulating the hypothalamic-pituitary-gonadal (HPG) axis and its influence on gonadotropin-releasing hormone (GnRH) signaling.

As scientific interest in reproductive peptides continues to expand, researchers frequently compare Kisspeptin suppliers based on purity, analytical testing, pricing, manufacturing standards, and supplier transparency.

This Kisspeptin-10 Vendor Price Comparison Guide helps researchers evaluate suppliers using objective criteria including:

• Product Pricing

• Cost Per Milligram

• Product Purity

• Third-Party Testing

• Certificate of Analysis (COA)

• Vendor Reputation

• Customer Reviews

• Shipping Performance

• Product Availability

• Overall Value

Whether you're looking for the most affordable Kisspeptin supplier, the highest-purity research-grade product, or vendors with extensive laboratory verification, this guide provides a framework for comparing peptide suppliers.

Explore Kisspeptin-10 Vendors by Criteria

Most Popular Kisspeptin Vendors

Compare suppliers frequently selected by endocrine and reproductive biology researchers.

Highest Reviewed Kisspeptin Vendors

Discover peptide suppliers with strong customer satisfaction and positive marketplace reputations.

Lowest Price Kisspeptin Vendors

Identify vendors offering competitive pricing and favorable cost-per-milligram value.

Highest Purity Kisspeptin Vendors

Review suppliers providing transparent purity verification and analytical testing.

Best Value Kisspeptin Vendors

Compare pricing, testing standards, customer support, and overall product quality.

Fastest Shipping Kisspeptin Vendors

Evaluate packaging quality, fulfillment reliability, and shipping speed.

Newly Listed Kisspeptin Vendors

Explore recently launched suppliers offering Kisspeptin research peptides.

What Is Kisspeptin-10?

Overview

Kisspeptin-10 is a biologically active fragment of the naturally occurring Kisspeptin protein, which plays an essential role in reproductive hormone regulation.

Researchers investigate Kisspeptin because of its relationship with:

• Gonadotropin-releasing hormone (GnRH)

• Luteinizing hormone (LH)

• Follicle-stimulating hormone (FSH)

• Reproductive endocrinology

• Puberty regulation

• Fertility signaling

• Neuroendocrine communication

• Hormone-dependent biological processes

Kisspeptin is considered one of the most important upstream regulators of reproductive hormone signaling.

Molecular Characteristics

Peptide Information

Researchers evaluating Kisspeptin products should carefully review molecular specifications and analytical documentation.

Peptide Name

Kisspeptin-10

Alternative Names

• Metastin

• KISS-1

• Kp-10

• Protein KISS-1

Amino Acid Sequence

YNWNSFGLRF

Molecular Formula

C63H83N17O14

Molecular Weight

1302.4 g/mol

PubChem CID

25240297

Classification

Neuroendocrine Peptide

Research Category

Reproductive & Endocrine Research

Why Researchers Compare Kisspeptin Vendors

Research reproducibility depends heavily on peptide quality and manufacturing consistency.

Differences among suppliers may include:

• Product purity

• Batch consistency

• Stability testing

• Manufacturing standards

• Product documentation

• Storage conditions

• Shipping quality

• Quality-control procedures

Careful supplier evaluation helps improve laboratory consistency and research reliability.

How We Compare Kisspeptin Vendors

Third-Party Laboratory Testing

Independent testing remains one of the strongest indicators of peptide quality.

Researchers should prioritize vendors offering:

• Third-party testing

• Identity verification

• Purity analysis

• Batch-specific laboratory reports

Certificate of Analysis (COA)

A quality COA should include:

• Batch number

• Testing date

• Purity percentage

• Identity confirmation

• Analytical methodology

Product Purity

Purity remains one of the most important factors when evaluating research peptides.

Higher-purity products may contribute to improved experimental reproducibility.

Cost Per Milligram

Comparing vial prices alone may be misleading.

Cost Per Milligram Formula

Product Price ÷ Total Milligrams = Cost Per Milligram

This allows researchers to compare products more accurately across vendors.

Customer Reviews

Customer feedback often provides insight regarding:

• Product consistency

• Packaging quality

• Shipping reliability

• Customer service

• Overall purchasing experience

Vendor Reputation

Established peptide suppliers often demonstrate:

• Transparent testing standards

• Reliable inventory management

• Strong quality-control systems

• Positive customer satisfaction

Current Research & Evidence

Reproductive Hormone Research

The primary focus of Kisspeptin research involves reproductive hormone regulation.

Researchers continue investigating pathways involving:

• GnRH secretion

• LH release

• FSH release

• Reproductive signaling

• Fertility-associated pathways

This remains the central area of Kisspeptin research.

Neuroendocrine Research

Kisspeptin serves as a major signaling molecule connecting the brain and reproductive system.

Researchers investigate:

• Hypothalamic signaling

• Endocrine communication

• Hormone regulation

• Reproductive neurobiology

These mechanisms remain a major focus of scientific investigation.

Key Findings on Kisspeptin Research

GnRH Research

One of the most important functions of Kisspeptin is its apparent influence on GnRH neurons.

Researchers continue studying:

• GnRH signaling pathways

• Puberty-associated hormone changes

• Reproductive maturation

• Pituitary regulation

This remains the foundation of Kisspeptin biology.

Testosterone Research

Experimental studies have investigated how Kisspeptin-related pathways influence:

• Luteinizing hormone signaling

• Testosterone regulation

• Reproductive endocrinology

• Hormonal communication

Researchers continue examining these interactions in laboratory models.

LH & FSH Research

Scientists frequently study Kisspeptin because of its relationship with:

• LH secretion

• FSH release

• Gonadal function

• Reproductive physiology

Further research remains ongoing.

Energy Balance Research

Researchers have discovered significant interactions between Kisspeptin and energy regulation pathways.

Areas of investigation include:

• Nutritional status

• Energy expenditure

• Adipose tissue signaling

• Reproductive fitness mechanisms

The relationship between metabolism and reproduction remains an important field of study.

Cancer Biology Research

Kisspeptin originally gained attention because of its role in metastasis-related research.

Scientists continue examining pathways involving:

• Tumor-cell migration

• Cancer progression

• Cellular adhesion

• Metastatic biology

This remains an active area of scientific investigation.

Memory & Cognitive Research

Emerging studies have explored Kisspeptin-related pathways involving:

• Memory formation

• Learning mechanisms

• Spatial orientation

• Neurocognitive signaling

Additional research remains necessary to fully understand these effects.

Mood & Motivation Research

Researchers continue studying how Kisspeptin may influence:

• Reward-related pathways

• Emotional processing

• Motivation

• Behavioral regulation

These investigations are helping scientists better understand the connection between reproduction and behavior.

Kidney Research

Kisspeptin receptors have been identified in kidney tissues.

Research continues in areas involving:

• Renal signaling

• Developmental biology

• Vascular regulation

• Organ-specific receptor activity

Cardiovascular Research

Scientists have also explored relationships involving:

• Angiogenesis

• Vascular signaling

• Blood-vessel regulation

• Cardiovascular communication pathways

Additional research remains ongoing.

Why Researchers Study Kisspeptin

Kisspeptin remains unique because it connects multiple biological systems simultaneously.

Common research applications include:

• Reproductive biology

• Fertility research

• Endocrinology

• Hormone signaling

• Neurobiology

• Behavioral science

• Oncology research

• Cardiovascular biology

Few peptides possess such broad biological relevance.

Research Limitations

Most findings involving Kisspeptin originate from:

• Cell-culture studies

• Animal models

• Laboratory investigations

• Early-stage human research

Additional research remains necessary to fully characterize biological mechanisms and long-term effects.

Research findings should not be interpreted as evidence of approved therapeutic applications.

Product Quality & Analytical Testing

Why Testing Matters

Research-grade Kisspeptin products should undergo testing to verify:

• Identity

• Purity

• Stability

• Potency

• Batch consistency

Common Testing Methods

High-Performance Liquid Chromatography (HPLC)

Used to assess purity and identify impurities.

Mass Spectrometry (MS)

Used to verify molecular identity and peptide composition.

Identity Verification Testing

Confirms peptide authenticity.

Stability Testing

Measures peptide integrity under storage conditions.

Batch Consistency Testing

Evaluates manufacturing reproducibility.

Understanding Kisspeptin Pricing

Several factors influence pricing among peptide suppliers.

Product Purity

Higher-purity products often command premium pricing.

Analytical Verification

Comprehensive testing improves transparency while increasing production costs.

Manufacturing Standards

Strict quality-control systems can significantly impact pricing.

Specialized Research Demand

Kisspeptin remains a specialized peptide primarily utilized in endocrine and reproductive biology research.

Vendor Reputation

Trusted suppliers often charge more due to stronger quality-assurance programs.

Kisspeptin Vendor Evaluation Checklist

Quality Verification

✅ Third-party testing available

✅ Certificate of Analysis provided

✅ Identity verification documented

✅ Purity information disclosed

✅ Batch-specific testing available

Vendor Reliability

✅ Positive customer reviews

✅ Transparent company information

✅ Responsive customer support

✅ Reliable inventory availability

Purchasing Experience

✅ Secure checkout process

✅ Shipment tracking available

✅ Clear refund policies

✅ Reliable order fulfillment

Red Flags When Comparing Vendors

Testing Concerns

❌ No third-party testing

❌ Missing COAs

❌ Unverified purity claims

❌ Outdated laboratory reports

Transparency Issues

❌ Hidden product specifications

❌ Missing batch information

❌ Limited testing documentation

❌ No company contact information

Service Problems

❌ Frequent inventory shortages

❌ Poor communication

❌ Negative customer reviews

❌ Unclear shipping policies

Frequently Asked Questions

What is Kisspeptin-10?

Kisspeptin-10 is a biologically active fragment of the Kisspeptin protein that plays a central role in reproductive hormone signaling and regulation of the hypothalamic-pituitary-gonadal axis.

What is Kisspeptin used for in research?

Researchers investigate Kisspeptin in studies involving reproductive endocrinology, GnRH signaling, LH and FSH regulation, fertility biology, reproductive behavior, cancer biology, neuroendocrine communication, and cardiovascular signaling.

Why compare Kisspeptin vendors?

Purity, analytical testing, documentation quality, pricing, and supplier reliability can vary significantly among vendors.

What should researchers review before purchasing?

Researchers should evaluate:

• Certificate of Analysis (COA)

• Third-party testing

• Purity verification

• Identity confirmation

• Vendor reputation

• Customer reviews

Why is third-party testing important?

Independent testing helps verify product identity, purity, and batch consistency while improving transparency.

Is the cheapest supplier always the best option?

No. Product quality, laboratory verification, testing standards, and supplier reliability are often more important than price alone.

How often should vendor comparisons be updated?

Pricing, testing reports, inventory availability, and supplier policies can change frequently and should be reviewed regularly.

Final Thoughts

Kisspeptin-10 remains one of the most important neuroendocrine peptides in modern reproductive biology research due to its central role in GnRH regulation, reproductive hormone signaling, fertility biology, and neuroendocrine communication. Ongoing investigations continue exploring its relationship with metabolism, mood, behavior, angiogenesis, cancer biology, and cardiovascular function.

When comparing Kisspeptin vendors, researchers should prioritize purity verification, third-party laboratory testing, Certificate of Analysis availability, supplier reputation, and overall value rather than focusing solely on price. A structured vendor-comparison process can help identify suppliers capable of meeting rigorous research-quality standards.