Kisspeptin-10
Human ResearchKisspeptin-10
A decapeptide that regulates reproductive hormones by modulating GnRH release. Researched for testosterone optimization and fertility.
Dose
0.1-10 nmol/kg
Route
SubQ injection, IV
Cycle
Not typically cycled in long-term regimens; acute or short-term pulsed administration is common in research
Storage
2-8°C (refrigerator) away from light
What is Kisspeptin-10?
Kisspeptin-10 is a naturally occurring decapeptide fragment of the larger kisspeptin protein, which plays a crucial role in regulating the hypothalamic-pituitary-gonadal (HPG) axis. It exerts its effects by binding to the G-protein coupled receptor 54 (GPR54), also known as the KISS1R receptor, primarily located in the hypothalamus. This interaction is central to the pulsatile release of gonadotropin-releasing hormone (GnRH), which subsequently stimulates the pituitary gland to secrete luteinizing hormone (LH) and follicle-stimulating hormone (FSH). Research indicates its potential for modulating reproductive hormones, including testosterone, and supporting fertility in various research contexts. Its short half-life necessitates careful consideration of administration frequency in research protocols.
Key Benefits
- Testosterone elevation
- LH and FSH stimulation
- Fertility support
- Libido research
Mechanism of Action
- Acts on GPR54 receptor in hypothalamus
- Stimulates GnRH pulse release
- Downstream LH and FSH elevation
- Testosterone production stimulation
Best For
- Testosterone research
- Fertility research
- Reproductive hormone research
Body Systems
🐾 Griffin Says...
Molecular Information
Molecular weight
1301.44 g/mol
Length
10
Type
Peptide
Amino acid sequence
YNWNSFGLRF-NH2
Tyrosine-Asparagine-Tryptophan-Asparagine-Serine-Phenylalanine-Glycine-Leucine-Arginine-Phenylalanine-Amide
Pharmacokinetics
Time to peak
10-30 minutes (IV), 30-60 minutes (SubQ)
Half-life
0.11666666666666667 h
Time to clear
Within 1-2 hours
Based on studies primarily in human and animal models following intravenous and subcutaneous administration.
Research Indications
Testosterone Optimization
Researched for its ability to stimulate endogenous testosterone production by initiating the GnRH-LH-testosterone cascade.
Sperm Quality Improvement
Investigated for its potential role in enhancing spermatogenesis and improving sperm parameters in certain models of male infertility.
Research Protocols
| Goal | Dose | Frequency | Route |
|---|---|---|---|
| Acute LH/FSH response measurement | 0.1-10 nmol/kg | Single subcutaneous or intravenous injection | Subcutaneous (SubQ) or Intravenous (IV) |
| Testosterone stimulation (male models) | 0.1-3 nmol/kg | Once daily or pulsed multiple times per day | Subcutaneous (SubQ) |
| Ovulation induction (female models) | 1.0-5.0 nmol/kg | Single or repeated injections at specific cycle phases | Subcutaneous (SubQ) |
| Long-term HPG axis modulation | 0.5-2 nmol/kg | Daily or twice daily over several weeks (pulsatile delivery often discussed) | Subcutaneous (SubQ) |
| Investigating central effects on GnRH neurons | 0.1-1 nmol/kg | Acute administration for neuroendocrine studies | Intravenous (IV) or direct central administration in animal models |
Due to its very short half-life, research protocols often involve acute or pulsatile administration rather than continuous infusion or widely spaced injections, to mimic physiological GnRH pulse patterns.
Peptide Interactions
- Use Caution
GnRH Analogues (agonists or antagonists)
Concurrent administration may interfere with Kisspeptin-10's mechanism of action on the HPG axis, potentially leading to unpredictable hormonal responses or blunting of effects. Monitoring of hormone levels is essential.
- Monitor Combination
Sex Steroids (e.g., Testosterone, Estradiol)
Kisspeptin-10 influences sex steroid levels. Concurrent administration of exogenous sex steroids may create complex feedback loops, requiring careful monitoring to avoid supraphysiological levels or HPG axis suppression.
- Monitor Combination
Dopamine Agonists/Antagonists
Dopamine pathways can modulate Kisspeptin-GnRH signaling. Co-administration of dopamine-modulating agents could alter the expected effects of Kisspeptin-10 on the HPG axis.
- Use Caution
Opioids
Opioids are known to suppress the HPG axis. Co-administration with Kisspeptin-10 might attenuate its stimulatory effects on GnRH release. The extent of interaction is context-dependent and requires investigation.
- Compatible
Growth Hormone Secretagogues (e.g., GHRPs, GHRH analogues)
No direct antagonistic or synergistic interactions are commonly reported in the literature between Kisspeptin-10 and growth hormone secretagogues, as they act on distinct hormonal axes. Monitoring is still prudent.
How to Reconstitute
- 1Gather lyophilized Kisspeptin-10 vial, bacteriostatic water for injection (BWFI), and sterile syringes with needles.
- 2Carefully remove the protective cap from the Kisspeptin-10 vial and wipe the rubber stopper with an alcohol swab.
- 3Draw the appropriate volume of BWFI (e.g., 1mL per 1mg of peptide) into a sterile syringe.
- 4Slowly inject the BWFI into the Kisspeptin-10 vial, directing the stream to the side of the vial to minimize frothing.
- 5Gently swirl the vial to dissolve the peptide. Do not shake vigorously.
- 6Once completely dissolved and clear, the solution is ready for administration. Store according to guidelines.
Reconstitute with bacteriostatic water for injection (BWFI) or sterile water for injection. Avoid vigorous shaking; swirl gently.
What to Expect
- Within minutes to hours (first dose): Acute elevation in LH and FSH levels, observable in blood tests.
- Within days (repeated administration): Potential for subsequent increases in testosterone levels in males or estradiol in females, depending on the research model.
- Within 1-2 weeks (repeated administration): Continued modulation of the HPG axis, with potential for sustained hormonal changes.
- Within 2-4 weeks (longer-term protocols): In fertility research, potential improvements in reproductive markers may be investigated.
- Variable: Individual response to Kisspeptin-10 can vary significantly based on baseline hormonal status and research objectives.
Side Effects & Safety
| Effect | Frequency | Severity |
|---|---|---|
| Potential receptor desensitization with overuse | With chronic use | Moderate |
| Headache | Rare | Mild |
Ready to calculate your dose? Use Griffin's Peptide Calculator 🐾
Open CalculatorPeptides discussed here are for research purposes only. Nothing on this page is medical advice. Always consult a qualified professional before making health decisions.