Research Protocol

Kisspeptin-10mg — Research Protocol

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Quickstart Highlights

Kisspeptin (also known as metastin) is a naturally occurring neuroendocrine peptide that plays a pivotal role in human reproduction by stimulating gonadotropin-releasing hormone (GnRH) secretion[1]. This small peptide binds to the GPR54 receptor in the hypothalamus, triggering pulsatile GnRH release and downstream secretion of luteinizing hormone (LH) and follicle-stimulating hormone (FSH)[2]. Originally identified as a metastasis-suppressor gene product, kisspeptin has become a major focus in reproductive endocrinology[3]. This educational protocol presents a once-daily subcutaneous approach for research use.

  • Reconstitute: Add 3.0 mL bacteriostatic water → ~3.33 mg/mL concentration.
  • Typical daily range: 100–200 mcg once daily (gradual titration).
  • Easy measuring: At 3.33 mg/mL, 1 unit = 0.01 mL ≈ 33.3 mcg on a U‑100 insulin syringe.
  • Storage: Lyophilized: freeze at −20 °C (−4 °F); after reconstitution, refrigerate at 2–8 °C (35.6–46.4 °F); avoid freeze–thaw cycles.

Dosing & Reconstitution Guide

Week Dose UNITS (PER INJECTION) (ML)
Weeks 1–2 100mcg 3 units (0.03ml)

Frequency: Inject once daily subcutaneously. This schedule follows a conservative titration to assess individual response[4][5]. For ≤10-unit (≤0.10 mL) administrations, consider 30- or 50-unit insulin syringes for improved readability.

Reconstitution Steps

  1. Draw 3.0 mL bacteriostatic water with a sterile syringe.
  2. Inject slowly down the vial wall; avoid foaming.
  3. Gently swirl/roll until dissolved (do not shake).
  4. Label and refrigerate at 2–8 °C (35.6–46.4 °F), protected from light.

Supplies Needed

Plan based on an 8–16 week daily protocol with gradual titration.

  • Peptide Vials (Kisspeptin, 10 mg each):

     

    • 8 weeks ≈ 1 vial
    • 12 weeks ≈ 2 vials
    • 16 weeks ≈ 3 vials
  • Insulin Syringes (U‑100):

     

    • Per week: 7 syringes (1/day)
    • 8 weeks: 56 syringes
    • 12 weeks: 84 syringes
    • 16 weeks: 112 syringes
  • Bacteriostatic Water (10 mL bottles): Use ~3.0 mL per vial for reconstitution.

     

    • 8 weeks (1 vial): 3 mL → 1 × 10 mL bottle
    • 12 weeks (2 vials): 6 mL → 1 × 10 mL bottle
    • 16 weeks (3 vials): 9 mL → 1 × 10 mL bottle
  • Alcohol Swabs: One for the vial stopper + one for the injection site each day.

     

    • Per week: 14 swabs (2/day)
    • 8 weeks: 112 swabs → recommend 2 × 100‑count boxes
    • 12 weeks: 168 swabs → recommend 2 × 100‑count boxes
    • 16 weeks: 224 swabs → recommend 3 × 100‑count boxes

Protocol Overview

Protocol Overview

Concise summary of the once‑daily regimen.

  • Goal: Support physiological reproductive hormone signaling through upstream GnRH stimulation[1].
  • Schedule: Daily subcutaneous injections for 8–12 weeks.
  • Dose Range: 100–200 mcg daily with gradual titration.
  • Reconstitution: 3.0 mL per 10 mg vial (~3.33 mg/mL) for precise low-volume measurements.
  • Storage: Lyophilized frozen; reconstituted refrigerated; avoid repeated freeze–thaw.

Dosing Protocol

Suggested daily titration approach.

  • Start: 100 mcg daily for 1–2 weeks to assess sensitivity[4].
  • Titrate: Increase to 200 mcg daily if tolerated and necessary[5].
  • Frequency: Once per day (subcutaneous).
  • Cycle Length: 8–12 weeks; avoid prolonged continuous use to prevent tachyphylaxis[6].
  • Timing: Any consistent time; rotate injection sites.

Storage Instructions

Proper storage preserves peptide quality.

  • Lyophilized: Store at −20 °C (−4 °F) in dry, dark conditions with desiccant if possible[15].
  • Reconstituted: Refrigerate at 2–8 °C (35.6–46.4 °F); stable up to ~4 weeks[16]; avoid freeze–thaw.
  • Allow vials to reach room temperature before opening to reduce condensation uptake.

How It Works

Kisspeptin is an upstream trigger for the reproductive hormone cascade. Upon subcutaneous injection, kisspeptin rapidly binds to kisspeptin receptors (GPR54) on GnRH neurons in the hypothalamus, causing immediate release of GnRH[7]. This in turn stimulates the anterior pituitary to secrete LH and FSH, which act on the gonads to boost sex steroid production and support gametogenesis[8]. Importantly, kisspeptin’s action is GnRH-dependent—if GnRH release is blocked, kisspeptin cannot induce LH/FSH secretion[9]. This confirms that kisspeptin works by unlocking the body’s own GnRH stores, providing a more physiologic pattern of hormone release compared to direct GnRH or hCG administration[10].

Potential Benefits & Side Effects

Research on kisspeptin has revealed multiple potential benefits for reproductive health.

  • Physiological Sex Hormone Stimulation: Increases endogenous testosterone and estrogen levels by amplifying the body’s own LH/FSH signals without suppressing the HPG axis[11].
  • Fertility Restoration: Shows promise in functional hypothalamic amenorrhea by rekindling GnRH/LH pulsatility and resuming menstrual cycles[12].
  • IVF Ovulation Trigger: Can induce robust LH surge to mature oocytes while potentially lowering the risk of ovarian hyperstimulation syndrome compared to traditional hCG triggers[13][14].
  • Safety Profile: Generally well tolerated; occasional mild injection-site reactions (redness/itch) may occur with subcutaneous administration.

 

References

For laboratory and research use only. Minimum 98% purity. Not intended for human or animal consumption, medical, diagnostic, therapeutic or veterinary use. These statements have not been evaluated by the MHRA or FDA. This protocol is provided for educational and research purposes only and is not medical advice. The purchaser accepts full responsibility for safe handling, storage and lawful use.