1 in 8

Australian women experience premature ovarian insufficiency before age 40

Jean Hailes for Women's Health 2022

Good reasons to test

Irregular, absent, or very short menstrual cycles
Perimenopause or menopause symptom assessment
Fertility or IVF monitoring

Estradiol (E2)

No fasting required. Day 2–5 of menstrual cycle for baseline; otherwise note cycle day on request — timing significantly affects interpretation Results arrive in 1-2 business days, explained in plain language in your dashboard. Most results sit within the usual range - that is still useful, and anything unexpected supports a conversation with your healthcare practitioner.

Targeted Testing

Oestradiol

The primary oestrogen — essential for cycle health, bone density, and mood

$65one-off, no subscription

NATA-accredited pathology
No GP referral needed
Results in 1-2 business days
Collect at 1,900+ centres

Why this test

Oestradiol (E2) is the most potent form of oestrogen — its levels shift dramatically across the menstrual cycle and throughout life.

Oestradiol is produced mainly by the ovaries and plays a central role in bone density, cardiovascular health, brain function, and reproductive health. It rises before ovulation and falls during menopause. In men, oestradiol (produced in small amounts by the testes and from testosterone conversion) is important for bone health and libido. This test is commonly used in fertility investigations, menopause assessment, and hormone replacement monitoring.

Understanding your results

Within reference range

Oestradiol reference ranges vary significantly by cycle phase — your full report includes phase-specific context

Low-normal / post-menopausal range

Normal in early follicular phase or after menopause — interpretation is cycle phase and life-stage dependent

Low

Expected after menopause; if premenopausal and not in the luteal phase, may be worth discussing with your healthcare practitioner

Above reference range

Elevated oestradiol outside of ovulation peak may warrant discussion with your healthcare practitioner

Reference ranges vary by laboratory and personal context. Your result is shown against the lab's range in your dashboard, alongside what it means.

How it works

TODAY

Order online

Pick a test or panel and check out. No GP referral, no waiting room.

THIS WEEK

One quick visit

Walk into one of 1,900+ NATA-accredited collection centres. A single blood draw is all it takes.

IN 2–5 DAYS

Clear results

We translate your results into plain language in your dashboard - what each marker means, and what is in range.

ONGOING

Track over time

Retest when it matters and watch your trends, so you can see what is actually changing.

Yes. You can order a Oestradiol test online from Clarity Labs without a GP referral. It's $65, collected at any of 1,900+ NATA-accredited centres across Australia, with results in 1-2 business days via your secure online dashboard.

A Oestradiol test is $65 at Clarity Labs — a one-off price with no subscription or membership. That covers your pathology request form and collection at any of 1,900+ NATA-accredited centres nationwide.

It depends on what you are investigating. Day 2–5 is used for baseline fertility assessment; around day 12–14 captures the pre-ovulatory peak; day 21 is used in progesterone/luteal phase assessment. Your healthcare practitioner will advise on the right timing.

Yes. Men produce small amounts of oestradiol (primarily from testosterone conversion). Elevated oestradiol in men may be associated with excess body fat or certain medical conditions and is worth investigating in the context of hormonal symptoms.

No fasting is required.

Oestradiol varies considerably across the cycle and throughout life — frequency depends entirely on what is being investigated. For IVF monitoring, testing may occur multiple times in a single cycle. For general menopause assessment, annually or as symptoms change.

NATA-accredited pathologyCollected through Sonic Healthcare1,900+ collection centresNo GP referral needed

Complete your health picture

Tests and panels that pair well with this one.

SHBG

Sex hormone binding globulin measurement for hormone transport and bioavailability assessment.

$65

Learn more

Progesterone

Progesterone measurement for reproductive hormone assessment and ovulation confirmation.

$65

Learn more

Luteinising hormone measurement for reproductive hormone assessment.

$65

Learn more

FSH

Follicle-stimulating hormone measurement for reproductive hormone assessment.

$65

Learn more

This information is for general education and is not medical advice, diagnosis, or treatment. Results are best interpreted with a qualified healthcare practitioner in the context of your symptoms and history.