Educational guide
Kisspeptin Overview, Dosing & Safety | Peptide Database
Kisspeptin (KP-10) KISS1 Gene Product | Reproductive Neuropeptide Community Research Join others researching Kisspeptin — share findings, ask questions, and learn from real experiences Kisspeptin acts as a master regulator of the reproductive system, stimulati
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Kisspeptin (KP-10)
KISS1 Gene Product | Reproductive Neuropeptide
Community Research
Join others researching Kisspeptin — share findings, ask questions, and learn from real experiences
Kisspeptin acts as a master regulator of the reproductive system, stimulating GnRH neurons essential for puberty, fertility, and reproductive function.
Binds to GPR54/KISS1R receptors on hypothalamic GnRH neurons, triggering pulsatile GnRH release, which stimulates pituitary LH/FSH secretion and gonadal steroid production.
Molecular Data
Kisspeptin
Position 1
10: Tyr
Position 2
Asparagine
Position 3
Tryptophan
Position 4
Position 5
Serine
Position 6
Phenylalanine
Position 7
Glycine
Position 8
Leucine
Position 9
Arginine
Position 10
Position 11
NH2
Position 12
Research Indications
Restores reproductive hormone secretion in functional or congenital cases by stimulating dormant GnRH axis.
Triggers oocyte maturation with 45% live birth rate and zero severe OHSS cases; safer than hCG.
Restores reproductive hormone pulsatility in women with hypothalamic amenorrhea.
Modulates sexual brain processing; increases penile tumescence by 56% vs placebo.
Modulates sexual and attraction brain processing; increases self-reported sexiness.
Preclinical evidence suggests influence on energy expenditure and activity levels.
Dosing Protocols
Standard administration route; allows precise dosing and rapid hormone stimulation.
Gonadotropin stimulation
100-200mcg
Single dose or 2-3x weekly
SubQ
Fertility support
0.4-1.0 nmol/kg (50-150mcg)
As directed by physician
SubQ (KP-54)
Sexual function (clinical)
1 nmol/kg/h
75-minute IV infusion
IV infusion
Reconstitution Instructions
Bacteriostatic water (BAC water)
Insulin syringes (0.5-1 mL)
Alcohol swabs
Sterile work surface
1 Clean work area and hands thoroughly with alcohol
2 Calculate required BAC water volume
3 Draw calculated water into syringe
4 Inject slowly down vial side (not directly onto powder)
5 Gently swirl until dissolved (never shake)
6 Store in refrigerator at 2-8°C
7 Use within 7 days for KP-10; 14 days for KP-54
Interactions
What to Expect
Side Effects & Safety
Common Side Effects
Minimal acute side effects reported
Potential mild cardiovascular effects
Stop Signs - Discontinue if:
Ovarian hyperstimulation signs: severe pelvic pain, bloating, nausea
Chest pain or cardiovascular symptoms
Severe headaches or visual disturbances
Persistent injection site reactions
Contraindications
Not recommended during pregnancy or breastfeeding
Caution with cardiovascular disease history
Daily dosing causes receptor desensitization
Quality Checklist
Good Signs
White, fluffy powder; proper freeze-drying indicated
Clear solution after reconstitution; no particles or cloudiness
Protected from light in amber/opaque vials
Warning Signs
Slight compaction acceptable if dissolves completely with gentle swirling
Bad Signs
Discoloration or yellowing indicates oxidation/degradation
Cloudy after reconstitution indicates degradation or contamination
Frequently Asked Questions
Is kisspeptin better than hCG for IVF ovulation triggering?
Yes, significantly. Kisspeptin-54 achieved 45% live birth rates with zero severe OHSS cases, compared to hCG's higher OHSS incidence. It triggers oocyte maturation more physiologically by stimulating the body's natural LH surge rather than replacing it with exogenous hormone.
Why do men respond to kisspeptin injections?
Kisspeptin stimulates GnRH neurons, triggering the hypothalamic-pituitary-gonadal axis. A single injection increases LH 3-5 fold, which then stimulates testosterone production. In a 2023 trial, kisspeptin increased penile tumescence by 56% versus placebo in men with erectile dysfunction.
Can I use kisspeptin daily?
No. Daily kisspeptin dosing causes receptor desensitization within days, making the peptide ineffective. Use only 2-3 times weekly maximum. For IVF, a single strategic dose triggers ovulation. For sexual function, spacing doses 48+ hours apart maintains responsiveness.
Is intranasal kisspeptin as effective as injection?
2025 research shows intranasal kisspeptin-54 (12.8 nmol/kg) rapidly stimulates LH in both healthy subjects and women with hypothalamic amenorrhea. It's non-invasive and convenient, though injectable routes remain better studied for reproductive applications.
References
32 men completed trial. Kisspeptin-54 IV (1 nmol/kg/h for 75 min) significantly modulated sexual brain processing and increased penile tumescence by up to 56% vs placebo. Potential as first pharmacological treatment for male HSDD.
Double-masked, placebo-controlled, 2-way crossover trial in women with HSDD. Kisspeptin modulated sexual and facial attraction brain processing, with hippocampal activation correlating with distress and reduced sexual aversion.
Live birth rates of 45% overall per transfer; 62% at optimal 9.6 nmol/kg dose. Zero cases of moderate, severe, or critical OHSS. Oocyte maturation in 95% of women.
Intranasal kisspeptin-54 (12.8 nmol/kg) rapidly stimulated LH release in healthy men (+4.4 IU/L), healthy women (+1.4 IU/L), and women with hypothalamic amenorrhea (+4.4 IU/L). Formulation stable for 60 days at 4°C.
Related Peptides
Serves as potentially safer alternative for IVF ovulation triggering.
Restores natural testosterone production through LH stimulation.
Disclaimer
This information is for educational and research purposes only. Consult a healthcare professional before use.