Peptides

Kisspeptin-10

Evidence: moderate_human

Mechanism of Action

Kisspeptin-10 is the 10-amino acid C-terminal fragment of the kisspeptin family that signals directly to GnRH neurons through the kisspeptin receptor (KISS1R/GPR54), triggering GnRH release into the portal circulation. This stimulates LH and FSH secretion from anterior pituitary gonadotrophs. In men, intravenous kisspeptin-10 produces rapid dose-dependent LH rises (4.1 to 12.4 IU/L at 1 mcg/kg within 30 minutes), increases LH pulse frequency and amplitude, and subsequently elevates testosterone through the HPG axis.

Dosing Protocol

Standard: Research indicates 1-10 mcg/kg via subcutaneous injection or IV bolus for acute HPG axis stimulation.

Maintenance: Research indicates dosing remains experimental with no established maintenance protocol.

Administration: subcutaneousintravenous

Timing: Morning dosing preferred for testosterone optimization. Can be used acutely before sexual activity.

Duration: Short-term use only. Continuous kisspeptin administration may cause tachyphylaxis (desensitization) of the HPG axis.

Notes

Kisspeptin-10 is one of the most physiological approaches to HPG axis stimulation — it works upstream of GnRH, preserving the entire natural hormonal cascade. It has shown promise for stimulating LH and testosterone in men and for treating functional hypothalamic amenorrhea in women. The short half-life and potential for desensitization limit its practical utility for chronic testosterone optimization. Most promising as a diagnostic tool and for acute use. Research is ongoing into longer-acting kisspeptin analogs.

Stacking

  • PT-141
  • HCG

Interactions

  • GnRH agonists/antagonists [HIGH] — Direct pathway interaction — GnRH analogs will interfere with kisspeptin's mechanism.
  • Testosterone replacement [HIGH] — Exogenous testosterone suppresses the HPG axis that kisspeptin aims to stimulate.
  • Clomiphene [MEDIUM] — Both stimulate LH; potentially additive but unstudied.

Contraindications

  • Hormone-sensitive cancers (prostate, breast)
  • Pregnancy and breastfeeding
  • Children/adolescents (premature puberty risk)

Side Effects

  • Facial flushing
  • Mild nausea
  • Elevated LH/testosterone (desired effect)
  • Potential for HPG axis desensitization with prolonged use

Key Papers

  • 10.1210/jc.2011-0089
  • 10.3389/fendo.2022.925206

Source Quality

Research-grade supplier. Extremely limited compounding pharmacy availability. Very short half-life requires precise timing.

Disclaimer: This information is for educational purposes only and is not medical advice. BioAccelera Labs does not diagnose, treat, or prescribe. Consult a licensed healthcare provider before using any compound.

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