HMG Ireland | Buy HMG | Research-Grade ≥99% Purity

HMG (Human Menopausal Gonadotropin) is a naturally derived gonadotropin preparation containing both FSH (Follicle-Stimulating Hormone) and LH (Luteinising Hormone) activity — one of the most extensively studied hormonal compounds in reproductive biology, fertility research, and gonadal function science — available to buy in Ireland with fast dispatch and full batch documentation included.

HMG provides dual FSH and LH receptor stimulation in a single preparation — activating the two primary gonadotropin signalling pathways that collectively regulate follicular development, ovarian steroidogenesis, spermatogenesis, and the hormonal biology of the hypothalamic-pituitary-gonadal axis — making it the most physiologically complete gonadotropin research tool available for studying the full spectrum of gonadal stimulation biology in pre-clinical and laboratory research settings. Researchers and institutions across Ireland can source verified, research-grade HMG directly from our Irish peptide supply, with domestic-speed dispatch and complete batch documentation.

✅ ≥99% Purity — HPLC & Mass Spectrometry Verified

✅ Batch-Specific Certificate of Analysis (CoA) Included

✅ Sterile Lyophilised Powder | GMP Manufactured

✅ Fast Dispatch to Ireland | Peptides Ireland Stock

What Is HMG?

HMG — Human Menopausal Gonadotropin — is a gonadotropin preparation originally derived from the urine of post-menopausal women, in whom the loss of negative feedback from declining ovarian oestrogen and inhibin causes a dramatic rise in pituitary FSH and LH secretion — resulting in markedly elevated gonadotropin concentrations in the urine that can be extracted, purified, and standardised for research and clinical use. Research-grade HMG is characterised by its combined FSH and LH biological activity — traditionally supplied in approximately equal FSH to LH activity ratios — providing simultaneous stimulation of both gonadotropin receptor systems in a single preparation.

FSH (Follicle-Stimulating Hormone) is a glycoprotein hormone produced by the anterior pituitary that acts on FSH receptors in the gonads — stimulating follicular development and granulosa cell function in the ovary, and supporting Sertoli cell function and spermatogenesis in the testis. FSH is the primary driver of folliculogenesis in females and an essential support hormone for sperm production in males.

LH (Luteinising Hormone) is a glycoprotein hormone produced by the anterior pituitary that acts on LH receptors in the gonads — stimulating theca cell androgen production and the LH surge-triggered ovulation in females, and driving Leydig cell testosterone synthesis in males. LH provides the steroidogenic stimulus that FSH alone cannot — particularly the androgen and testosterone production that is essential for complete gonadal function in both sexes.

Together, FSH and LH act in a coordinated and interdependent manner across the full biological programme of gonadal function — follicular development requires both FSH-driven granulosa cell activity and LH-driven theca cell androgen provision for aromatisation, while male reproductive function requires both FSH’s Sertoli cell support and LH’s Leydig cell testosterone stimulation. HMG’s combined FSH and LH activity makes it the most physiologically complete gonadotropin research tool for studying this coordinated biology.

What Does HMG Do in Research?

In controlled laboratory and pre-clinical settings, HMG is studied across a broad range of reproductive biology, endocrinology, and gonadal function research applications:

Gonadotropin Receptor Pharmacology Research — HMG provides simultaneous FSH receptor and LH receptor stimulation — making it a research tool for studying the combined pharmacology of dual gonadotropin receptor activation, comparing the downstream signalling consequences of FSH and LH co-stimulation versus selective receptor activation, and examining how the two receptor systems interact in coordinating gonadal cell biology. Studies have characterised cAMP-mediated signalling, steroidogenic enzyme induction, and gene expression changes driven by combined FSH and LH receptor stimulation in gonadal cell models.

Folliculogenesis and Ovarian Biology Research — HMG is one of the primary research tools for studying follicular development — the process by which primordial follicles are recruited, develop through primary and secondary stages, and mature into pre-ovulatory follicles capable of ovulation. Studies have examined how combined FSH and LH stimulation drives granulosa cell proliferation, theca cell androgen production, follicular fluid accumulation, and the sequential hormonal events of folliculogenesis in pre-clinical ovarian biology models.

Ovarian Steroidogenesis Research — The two-cell, two-gonadotropin model of ovarian steroidogenesis — in which LH drives theca cell androgen production and FSH drives granulosa cell aromatisation of androgens to oestrogens — is one of the most fundamental models in reproductive endocrinology, and HMG is the primary research tool for studying this coordinated steroidogenic biology. Studies have examined how combined gonadotropin stimulation affects oestradiol production, progesterone synthesis, and the hormonal output of follicular and luteal phase ovarian tissue.

Spermatogenesis and Male Reproductive Biology Research — HMG provides both the FSH signal for Sertoli cell function and the LH signal for Leydig cell testosterone production that together support complete spermatogenesis. Studies have used HMG to examine how combined gonadotropin stimulation affects testicular function — including Sertoli cell support of germ cell development, Leydig cell steroidogenesis, and the hormonal milieu of the testis required for complete sperm production in pre-clinical male reproductive biology models.

Hypothalamic-Pituitary-Gonadal Axis Research — HMG is used as a research tool for studying the hypothalamic-pituitary-gonadal (HPG) axis — the hormonal feedback system that regulates reproductive function through interactions between GnRH, gonadotropins, and gonadal sex steroids. Studies have examined how exogenous gonadotropin stimulation via HMG affects HPG axis feedback regulation, pituitary gonadotropin secretion patterns, and the neuroendocrine control of gonadal function in pre-clinical HPG axis research models.

Superovulation Research — HMG is used in pre-clinical superovulation protocols — stimulating multiple follicular development and ovulation in research animal models — for studies examining oocyte biology, embryo development, reproductive technology research, and the biological consequences of supraphysiological gonadotropin stimulation on ovarian function and oocyte quality.

Oocyte Biology and Maturation Research — Studies have examined how HMG-driven gonadotropin stimulation affects oocyte developmental competence, nuclear and cytoplasmic maturation, fertilisation capacity, and early embryo development — contributing to the fundamental understanding of how gonadotropin signalling quality affects oocyte biology in pre-clinical reproductive research models.

Granulosa Cell and Theca Cell Biology Research — HMG provides the primary hormonal stimuli for both the granulosa cell (FSH) and theca cell (LH) compartments of the ovarian follicle — making it a research tool for studying the biology of both cell types and their interactions in coordinating follicular development and steroidogenesis. Studies have used HMG to examine granulosa cell gene expression, luteinisation, and progesterone production alongside theca cell androgen synthesis and its regulation by LH signalling.

Leydig Cell Biology and Testosterone Research — The LH component of HMG is the primary stimulus for Leydig cell steroidogenesis — driving testosterone synthesis through cAMP-mediated activation of steroidogenic acute regulatory protein (StAR) and steroidogenic enzyme expression. Studies have examined how LH receptor signalling from HMG affects Leydig cell testosterone production, steroidogenic pathway regulation, and the hormonal consequences of Leydig cell stimulation in pre-clinical male endocrinology research.

Hypogonadism and Gonadal Insufficiency Research — HMG has been studied in the context of hypogonadotropic hypogonadism — a condition in which insufficient gonadotropin secretion leads to impaired gonadal function — with pre-clinical and clinical research examining how exogenous gonadotropin replacement with HMG restores gonadal steroidogenesis, gametogenesis, and reproductive function in gonadotropin-deficient models.

Polycystic Ovary Syndrome (PCOS) Research — HMG is used in pre-clinical PCOS research models — examining how altered gonadotropin sensitivity, follicular development abnormalities, and steroidogenic dysfunction in PCOS-relevant biological contexts respond to gonadotropin stimulation, contributing to the understanding of gonadotropin-related reproductive pathology in ovarian dysfunction research.

Ovarian Reserve and Ageing Research — Studies have examined how ovarian response to gonadotropin stimulation with HMG changes with reproductive ageing — documenting the decline in follicular response, oocyte quality, and steroidogenic capacity with age in pre-clinical models — contributing to research on ovarian reserve biology and the hormonal mechanisms underlying age-related reproductive decline.

What Do Studies Say About HMG?

HMG has one of the most extensive research and clinical application histories of any gonadotropin preparation in reproductive biology:

Dual Gonadotropin Activity Confirmed and Standardised — Decades of pharmacological research have confirmed and standardised HMG’s combined FSH and LH biological activity — with international unit (IU) standardisation against reference preparations enabling reproducible dosing across research programmes. Studies have characterised the receptor binding properties, downstream signalling profiles, and gonadal biological activity of both the FSH and LH components in standardised HMG preparations.

Folliculogenesis and Steroidogenesis Extensively Characterised — Pre-clinical research has comprehensively characterised how HMG stimulation drives follicular development and ovarian steroidogenesis — documenting the sequential cellular events of folliculogenesis, the two-cell steroidogenic mechanism, and the hormonal output profile of gonadotropin-stimulated ovarian tissue across multiple pre-clinical species and model systems. This follicular biology research represents the most extensively characterised aspect of HMG’s pre-clinical research profile.

Spermatogenesis Restoration in Hypogonadal Models — Pre-clinical and clinical studies have documented HMG’s ability to restore spermatogenesis in gonadotropin-deficient models — with research reporting recovery of testicular function, Leydig cell steroidogenesis, and sperm production following HMG treatment in hypogonadotropic hypogonadism models, establishing the gonadotropin replacement rationale for combined FSH and LH activity in male reproductive biology research.

Superovulation Protocols Validated — Pre-clinical research has extensively validated HMG-based superovulation protocols across multiple research animal species — documenting dose-response relationships, timing parameters, and biological outcomes of gonadotropin-driven multiple follicular development and ovulation, establishing HMG as a foundational tool in reproductive technology and oocyte biology research.

HPG Axis Feedback Characterised — Research has characterised how exogenous HMG administration affects HPG axis feedback — documenting suppression of endogenous gonadotropin secretion through steroid feedback, the consequences of gonadotropin stimulation on hypothalamic GnRH pulse patterns, and the neuroendocrine adaptations to exogenous gonadotropin exposure in pre-clinical HPG axis research models.

Clinical Fertility Research Database — HMG has been used in clinical fertility research programmes for decades — with a substantial body of clinical data examining its effects on ovarian stimulation, oocyte yield, fertilisation rates, and reproductive outcomes in clinical research contexts — providing translational research context that extends from pre-clinical mechanistic studies through to human reproductive biology data.

How Does HMG Compare to Other Gonadotropin Research Compounds?

Feature	HMG	Recombinant FSH (r-FSH)	Recombinant LH (r-LH)	hCG
Composition	FSH + LH combined	FSH only	LH only	LH receptor agonist — structurally distinct
Receptor Coverage	Dual — FSH-R + LH-R	FSH-R only	LH-R only	LH-R only (high affinity)
Steroidogenesis	Complete — theca + granulosa cell activation	Incomplete — granulosa only	Incomplete — theca / Leydig only	High — strong LH-R steroidogenic drive
Spermatogenesis	Complete support — FSH (Sertoli) + LH (Leydig)	Partial — Sertoli cell support only	Partial — Leydig cell support only	Leydig cell support only
Physiological Completeness	Highest — mirrors pituitary gonadotropin output	Partial	Partial	Partial — LH-type only
Research Application	Complete gonadal stimulation / HPG axis / reproductive biology	Isolated FSH biology / folliculogenesis	Isolated LH biology / steroidogenesis	Luteal support / Leydig stimulation / ovulation trigger
Key Research Distinction	Only preparation providing physiologically complete dual gonadotropin stimulation	Purest FSH research tool	Purest LH research tool	Longest-acting LH receptor agonist

HMG is irreplaceable as a research tool for studying the coordinated biology of FSH and LH co-stimulation — the physiologically authentic gonadotropin signal that drives complete gonadal function — in ways that selective single-hormone preparations cannot replicate.

Product Specifications

Parameter	Detail
Name	HMG (Human Menopausal Gonadotropin)
Composition	FSH + LH combined biological activity
Activity Ratio	Approximately 1:1 FSH to LH activity (IU)
Receptor Targets	FSH receptor (FSH-R) + LH receptor (LH-R)
Primary Mechanism	Dual gonadotropin receptor activation — gonadal steroidogenesis and gametogenesis
Key Research Areas	Reproductive biology / folliculogenesis / steroidogenesis / spermatogenesis / HPG axis
Purity	≥99% HPLC & MS Verified
Form	Sterile Lyophilised Powder
Solubility	Sterile water, bacteriostatic water
Storage (Powder)	2–8°C or -20°C, protect from light
Storage (Reconstituted)	2–8°C, use promptly
Manufacturing	GMP Manufactured

Buy HMG in Ireland — What’s Included

Every order of HMG in Ireland includes:

✅ Batch-Specific Certificate of Analysis (CoA)

✅ HPLC Chromatogram

✅ Mass Spectrometry Confirmation

✅ Biological Activity Standardisation Report

✅ Sterility & Endotoxin Testing Report

✅ Reconstitution Protocol

✅ Technical Research Support

Frequently Asked Questions

Can I buy HMG in Ireland? Yes — we supply research-grade HMG to researchers and institutions across Ireland with fast dispatch and full batch documentation. This compound is supplied strictly for laboratory research purposes only.

What is HMG and how does it differ from recombinant FSH or LH? HMG is a gonadotropin preparation containing both FSH and LH biological activity — derived originally from post-menopausal urine where elevated gonadotropin concentrations make extraction and purification practical. Unlike recombinant FSH or recombinant LH — which provide isolated single-hormone stimulation of one receptor type — HMG provides simultaneous stimulation of both FSH receptors and LH receptors, reproducing the physiologically authentic dual gonadotropin signal that the pituitary gland delivers to the gonads. This physiological completeness makes HMG the most relevant research tool for studying coordinated gonadal biology that depends on both receptor systems acting together.

What is the two-cell, two-gonadotropin model and why is HMG relevant to it? The two-cell, two-gonadotropin model is a foundational concept in ovarian biology describing how oestrogen biosynthesis in the ovarian follicle requires coordinated activity of two cell types responding to two different gonadotropins. LH acts on theca cells to stimulate androgen production — primarily androstenedione and testosterone — which are then transferred to adjacent granulosa cells where FSH-driven aromatase activity converts them to oestrogens. Neither cell type alone can produce oestrogen — both gonadotropin signals and both cell populations are required. HMG provides both the FSH and LH signals simultaneously, making it the natural research tool for studying this coordinated steroidogenic biology in its physiologically complete form.

Why does post-menopausal urine contain elevated gonadotropins? After the menopause, ovarian follicular activity ceases and oestrogen and inhibin production from the ovaries falls dramatically. In the normal reproductive years, oestrogen and inhibin suppress pituitary FSH and LH secretion through negative feedback — keeping gonadotropin levels in check. When this negative feedback is removed at menopause, the pituitary responds by dramatically increasing FSH and LH secretion in an attempt to stimulate gonadal activity — resulting in markedly elevated circulating and urinary gonadotropin concentrations. Post-menopausal urine therefore provides a practical and abundant biological source of both FSH and LH for extraction and purification into standardised HMG preparations.

What is the difference between HMG and hCG in reproductive research? HMG provides both FSH and LH biological activity — stimulating both receptor types to support the full programme of follicular development, steroidogenesis, and gametogenesis. hCG (human Chorionic Gonadotropin) is structurally related to LH and acts selectively on LH receptors — with higher binding affinity and longer biological half-life than LH itself, making it useful as an ovulation trigger or sustained LH receptor agonist but providing no FSH receptor activity. In research contexts, HMG is used when complete dual gonadotropin stimulation is required, while hCG is used when prolonged or high-magnitude LH receptor activation alone is the research objective.

What purity is recommended for HMG research? ≥99% purity with confirmed FSH and LH biological activity standardisation is strongly recommended for gonadotropin receptor pharmacology, folliculogenesis studies, steroidogenesis assays, spermatogenesis research, and in vivo pre-clinical reproductive biology models where compound quality and activity consistency directly affect biological responses and experimental reproducibility. All HMG Ireland stock is independently verified to ≥99% with biological activity documentation.

How do I reconstitute HMG for laboratory use? Allow the vial to reach room temperature before opening. Reconstitute HMG in sterile water or bacteriostatic water by adding solvent slowly down the inside wall of the vial and swirling gently — do not shake or vortex as this can denature the glycoprotein hormone components. HMG dissolves readily in aqueous solution. Use promptly after reconstitution, or store at 2–8°C for short-term use within 24–48 hours. For longer-term storage of reconstituted HMG, aliquot into single-use volumes and store at -20°C — avoid repeated freeze-thaw cycles which can reduce biological activity of the glycoprotein hormone components.

Research Disclaimer

HMG (Human Menopausal Gonadotropin) is supplied exclusively for legitimate scientific research purposes conducted within licensed laboratory environments. This product is not intended for human consumption, self-administration, or any therapeutic application. It must be handled by qualified researchers in compliance with applicable Irish and EU regulations and institutional ethics guidelines. By purchasing, you confirm that this compound will be used solely for approved in-vitro or pre-clinical research purposes.