ORDER
Place your order
Order online, no GP referral required for direct-access tests.
Practitioner grade
Practitioner only
Cortisol rhythm and sex hormones (at-home saliva)
Map your daily stress rhythm
An at-home saliva test measuring the daily cortisol rhythm alongside sex hormones.
What it measures
- Cortisol (x4 points)
- DHEA
- Oestradiol (E2)
- Progesterone
- Testosterone (Free)
- Progesterone:Oestradiol Ratio
Test details
CollectionSee product page
Results in3 to 5 days
LabNutriPath
Practitioner consult session
A 15-minute consultation. An email link will be included in your order confirmation to make the booking.
Optional 1:1 with our clinical team · $49
Clinician-reviewed report
Plain-English + GP PDF
Direct-access ordering
Clinical interpretation included
Sample to result
From sample to actionable answer.
Direct-access pathology and assessments. Every result is reviewed by a clinician before it reaches you.
RECEIVE
Get your form or kit
Email pathology form, postal collection kit, or assessment link within 1–2 business days.
COLLECT
Collect or complete
At any pathology network, at home, or online, depending on the test.
RESULTS
Clinician-reviewed report
Plain-English summary plus GP-formatted PDF. Share with your practitioner or keep private.
What it measures
Cortisol (x4 points)
Saliva
The four point rhythm is far more informative than any single cortisol reading. Reveals flattening (burnout pattern), reversed rhythm (high at night, low in morning) or elevation at specific times.
Reference range: Waking peak, gradual decline to near zero at bedtime
DHEA
Saliva
The adrenal hormone that counter balances cortisol. Low DHEA with elevated cortisol is the classic chronic stress pattern.
Reference range: Declines with age, low in chronic stress
Oestradiol (E2)
Saliva
Saliva reflects free, unbound oestradiol, which is the biologically active fraction.
Reference range: Measures bioavailable oestrogen
Progesterone
Saliva
The free fraction of progesterone, which correlates with symptoms more reliably than total serum levels.
Reference range: Measures bioavailable progesterone
Testosterone (Free)
Saliva
Women produce testosterone too. Low free testosterone is associated with low libido, low mood and reduced muscle mass.
Reference range: Measures active testosterone
Progesterone:Oestradiol Ratio
Calculated
One of the most useful ratios in assessing perimenopausal symptom drivers. Low progesterone relative to oestradiol often explains PMS, sleep and mood symptoms in the late 30s and 40s.
Reference range: Context dependent
How it works
Your practitioner will advise on collection. Follow the kit instructions and return your sample as directed.
Warnings: This is a health information tool and is not a diagnosis. Discuss your results with your practitioner before making changes to medication, supplements or treatment.
Real people. Real impact.
Patients following practitioner-designed protocols, sharing their outcomes in their own words.
"This was the first time someone showed me what was happening and what to do about it. "
"My ferritin had been low-normal for three years. The protocol made a real difference within six weeks."
"Someone finally put all the pieces together. Clear, specific and actually useful."
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Frequently asked.
Common questions about how OptiLabs works: testing, supplements, clinician review, returns and timing.
Are the supplements safe?
All carry an AUST L designation from the TGA. Every order is reviewed by a clinician before dispatch.
Do I need a referral?
No. All tests are available to order directly. Our lab partner is NATA and RCPA accredited, operating as a direct-access pathology service.
Begin your investigation
Personalised health. Clinical rigour. Delivered to you.
A proper investigation into what's driving your symptoms, with a clinician-reviewed report, not a cryptic lab printout.