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hormone

Buserelin

FDA: FDA-approved

Buserelin is a synthetic GnRH analog that initially increases, then suppresses LH and FSH through receptor downregulation. In peptide biohacking, short bursts (5-7 days) are used to reboot a suppressed HPTA axis, particularly after TRT or steroid use. Synthetic gonadotropin-releasing hormone (GnRH) analog. Initially increases, then suppresses LH and FSH through receptor downregulation. In short-term pulsatile use (5-7 days), it acts as an HPTA rebooter — the initial surge of LH/FSH jumpstarts natural testosterone production before suppression occurs (PMID: 15760966). - HPTA reboot after suppression (TRT, steroids) - Short-term testosterone restoration - Jumpstarts natural hormone production - Alternative to Triptorelin

This content is for educational and research purposes only. VialBase does not provide medical advice. Consult a healthcare professional before using any peptide.

Molecular weight —
Half-life —
CAS number 57982-77-1
Route —

Stacks containing Buserelin

Vigor

Kisspeptin-10 + Gonadorelin + Buserelin
What bloodwork do I need?

Reference ranges are general guidelines. Consult your physician for interpretation.

PRE-CYCLE
  • LH
  • FSH
  • Testosterone (Total + Free)
  • Estradiol
  • CMP
  • CBC
DURING CYCLE
  • LH
  • FSH
  • Testosterone
  • Estradiol
POST-CYCLE
  • LH
  • FSH
  • Testosterone
  • Estradiol
  • CMP
Safety & Regulatory Status
FDA STATUS FDA-approved

Regulatory status for Buserelin may change. Verify current status with your jurisdiction before use. This is not legal or medical advice.

Frequently Asked Questions

What is Buserelin?
Buserelin is a synthetic GnRH analog that initially increases, then suppresses LH and FSH through receptor downregulation. In peptide biohacking, short bursts (5-7 days) are used to reboot a suppressed HPTA axis, particularly after TRT or steroid use.
How does Buserelin work?
Synthetic gonadotropin-releasing hormone (GnRH) analog. Initially increases, then suppresses LH and FSH through receptor downregulation. In short-term pulsatile use (5-7 days), it acts as an HPTA rebooter — the initial surge of LH/FSH jumpstarts natural testosterone production before suppression occurs.
How is Buserelin dosed?
Standard: 20 mcg/day for no more than 5-7 days; Route: SubQ injection or nasal spray; Critical: Short-term use ONLY — longer use causes suppression. These figures reflect commonly cited research protocols, not medical advice — consult a clinician.
Is Buserelin FDA-approved?
Buserelin is FDA-approved. FDA-approved for prostate cancer, endometriosis, and IVF protocols; Off-label use for HPTA restart in biohacking; Requires medical supervision.