Understanding it
What hormone imbalance actually is
"Hormone imbalance" describes the experience of oestrogen and its related hormones behaving in ways that produce symptoms — even when standard hormone blood tests come back "normal." The classic patterns are PMS that worsens with age, heavy or painful periods, mood swings that track the calendar precisely, breast tenderness, and perimenopausal symptoms like hot flushes, night sweats, and sleep disruption arriving years earlier than expected. The key insight is that symptoms of "oestrogen dominance" can appear with perfectly normal hormone levels — because the problem isn't how much oestrogen you make, it's how well you break it down and clear it.
The roots
What might be causing it
Oestrogen metabolism happens in two phases: it's first broken down (largely by CYP1B1) into different metabolites — some protective, some more reactive — and then cleared through methylation (COMT) and detoxification pathways (SULT1A1, GST family). When clearance lags, even normal oestrogen production builds up and drives symptoms. A slow COMT means methyl groups can't keep up with oestrogen clearance; CYP1B1 variants push more toward the reactive metabolites; sluggish detox pathways slow elimination. MTHFR variants reduce the methyl supply that COMT depends on. On top of genetics, stress (which competes for the same methylation resources), low fibre, environmental oestrogens, alcohol, and nutrient shortfalls all slow clearance. The result is symptoms that cycle with hormones but don't show up on a standard hormone panel.
The standard path
How it's usually treated
The conventional options depend on life stage and severity. For PMS and heavy cycles, combined oral contraceptives are commonly prescribed to override the natural cycle and stabilize hormone levels. For perimenopausal symptoms, hormone replacement therapy (oestrogen, with progesterone where the uterus is intact) is the primary medical treatment, delivered orally, transdermally, or via IUD. For severe menstrual pain, NSAIDs are standard. Each can be effective, but they work by replacing or suppressing hormones rather than improving how the body handles the oestrogen it already makes. HRT in particular is metabolized through the same CYP and methylation pathways — meaning a woman with slow oestrogen clearance may not tolerate standard HRT well, and the genes that govern this are rarely checked before it's prescribed.
A different angle
How genetic screening can help
Genetic screening maps the full oestrogen-handling pathway: CYP1B1 (which metabolites you lean toward), COMT and MTHFR (methylation and clearance capacity), and the SULT and GST detox genes. With that map, support targets the actual bottleneck — supporting oestrogen clearance rather than just overriding the cycle. Cruciferous vegetables and DIM shift metabolism toward protective pathways; calcium-D-glucarate supports elimination; magnesium, fibre, and methylation cofactors (matched to COMT and MTHFR status) help the clearance machinery keep up. For many women, supporting clearance reduces PMS severity, cycle heaviness, and early perimenopausal symptoms enough that hormonal medication becomes optional or lower-dose. And if HRT is the right choice, knowing your oestrogen-metabolism genes helps you and your doctor choose a form and dose your body is more likely to handle well — rather than discovering a tolerance problem by trial and error.
This is educational support, not a diagnosis or a treatment plan. We help you understand genetic tendencies and support them with food, lifestyle and nutrients alongside your doctor.
