At a glance
Type
GnRH / LHRH decapeptide
Molecular weight
≈1182.3 g/mol
Studied for
LH / FSH releaseFertilityReproductive axis
Gonadorelin is the synthetic form of GnRH (gonadotropin-releasing hormone) — the decapeptide the hypothalamus uses to tell the pituitary to make LH and FSH. It has been used clinically for decades in fertility and diagnostics.
How gonadorelin works
Gonadorelin is a GnRH-receptor agonist on pituitary gonadotroph cells, stimulating release of LH and FSH. Timing is everything: delivered in a pulsatile pattern that mimics the body’s natural rhythm (roughly every 60–120 minutes), it sustains gonadotropin output and drives the reproductive axis. Continuous, non-pulsatile exposure does the opposite — it desensitises the receptor and suppresses LH/FSH, the basis of long-acting GnRH-agonist therapy.
What the research shows
- Inducing puberty (Hoffman & Crowley, NEJM 1982). Pulsatile low-dose GnRH reversed hypogonadotropic hypogonadism in men, raising testosterone and inducing sperm production.
- Agonist vs antagonist (Couzinet et al., 1991). Directly contrasted GnRH agonist and antagonist effects on pulsatile LH/FSH secretion.
- Ovulation induction (Filicori, 2023). A modern review reported ~75% ovulation across 600 pulsatile-GnRH cycles with minimal hyperstimulation.
Context & candour: gonadorelin has been used clinically (e.g., as Factrel and via pulsatile pumps) as a diagnostic agent and to induce ovulation and puberty — noted for context only. Physique or anti-aging claims are not established. Use belongs under a physician’s guidance.
Molecular specification
| Type | GnRH / LHRH decapeptide |
| Sequence | pGlu-His-Trp-Ser-Tyr-Gly-Leu-Arg-Pro-Gly-NH2 |
| Molecular formula | C55H75N17O13 |
| Molecular weight | ≈1182.3 g/mol |
| CAS number | 33515-09-2 (base) |
Quality and sourcing
Every batch of Azzurri Wellness gonadorelin is compounded through a Registered 503B outsourcing facility under GMP-compliant processes, HPLC-tested for purity and potency, and third-party lab verified. Shipped cold-pack when needed to protect stability.
References
- Hoffman AR, Crowley WF Jr. Induction of puberty in men by long-term pulsatile administration of low-dose GnRH. N Engl J Med. 1982. PubMed
- Couzinet B, et al. Effects of GnRH antagonist and agonist on the pulsatile release of gonadotrophins. Clin Endocrinol. 1991;34(6):477–483. PubMed
- Filicori M. Pulsatile gonadotropin-releasing hormone: clinical applications of a physiologic paradigm. F&S Reports. 2023. PubMed
Compiled by the Azzurri Wellness Research Team and checked against the cited literature. Educational only — not medical advice.
