Want to evaluate your body’s antioxidant capacity and oxidative stress balance by measuring reduced and oxidised glutathione—the “master antioxidant”—to better support detoxification and resilience?
Assess your body’s master antioxidant with the Glutathione Index Test. Measuring both reduced (GSH) and oxidised (GSSG) glutathione, this test evaluates your antioxidant capacity and oxidative stress resilience.
Your at-home test kit and all instructions are posted directly to you (with free shipping). You do not need to visit a collection centre.
4k+ Collection Locations
Personalised Reports
Early Detection
Private health tests
How At-Home Testing Works
Get tested from the comfort of your home with our simple three-step process.
1
Order your test kit
Choose the test that's right for you and receive your kit delivered to your door.
2
Collect your sample
Follow the simple instructions to collect your sample at home.
3
Get your results
Receive your results online and get personalised health insights.
Testimonials
What Our Customers Say
4.9
Average Rating
2,500+Customers Tested
90,000+Individual Biomarkers
A
Adam O.
ACT
Simple health checks in my control
I didn't know that private blood tests were an option. Tried this platform as the packages suited what I wanted for a good price. Easy to follow instructions, and super quick results. Platform provides more information than my gp's ever have on the tests and what the results meant. Would like more clinics to be able to test at (specifically Capital Pathology) but there is a decent network. Will continue to use.
The Performance Check
C
Christopher N.
NSW
Quick access to blood tests
BLOODY GOOD is a very efficient route to access blood testing for a visitor outside the Australian health system. It is quick with the necessary referral and documentation, and quick with results. Thank you
Full Blood Count (FBC) Blood Test
R
Rebecca Y
NSW
Great Service!
Fantastic service to deal with, I love the extra explanations for all the tests.
Glycated Haemoglobin (HbA1c)
O
Olga B.
New South Wales
Convenient
Getting a referral was easy. Laverty pathology accepted it. Bloody Good offers an affordable and convenient way to check essential blood markers.
hs-CRP Blood Test
M
Marita S.
Queensland
Bloody good test
Very comprehensive tests that have given me a good picture of my overall health.
The Bloody Good Test
W
Wayne S.
NSW
Bloody Good
This is a great service, very helpful support, cheaper than going to the doctor for a blood test
Vitamin D (25-OH)
L
Lukas C.
NSW
Quick, easy, hassle free
Excellent service, quick, easy, hassle free, can recommend.
Testosterone Free/Total + SHBG
A
ABDUL S.
QLD
Amazingly quick and efficient
Very easy to use. Love that it stores your blood tests.
The Performance Test
A
Andre D.
QLD
5 Stars
Efficient and easy to use
Prostate-Specific Antigen (PSA)
W
Wayne
NSW
5 Stars
Extremely helpful company
Calcium Blood Test
"I'm a little biased as I work here! However, I love that The Bloody Good Test tracks my health over time. After turning 40, I wanted to make sure I wasn't going to drop dead from something basic I should have known about earlier. Measuring all my core biomarkers each year gives me peace of mind my health is on the right track"
Cameron SmithHead of Ecommerce, Brisbane
Overview
The Glutathione Index measures both reduced glutathione (GSH) and oxidised glutathione (GSSG), offering a clear assessment of your antioxidant capacity and oxidative stress balance. Often called the body’s “master antioxidant,” glutathione plays a central role in detoxification, immune defence, and cellular repair. This test reveals how effectively your body manages toxic burden and responds to oxidative challenges.
Low glutathione levels or an elevated oxidative stress load may contribute to fatigue, slow recovery, frequent illness, brain fog, inflammation, and reduced resilience. This test is particularly valuable for individuals exposed to pollutants, experiencing high stress, or seeking to enhance longevity and detox pathways. Understanding your glutathione status enables targeted interventions to strengthen cellular protection and overall vitality.
Symptoms
This test assesses oxidative stress and antioxidant capacity by measuring reduced and oxidised glutathione. Low glutathione or elevated oxidative stress may present as chronic fatigue, frequent illness, slow recovery, inflammation, headaches, brain fog, or sensitivity to toxins. It is a powerful tool for those under chronic stress, exposed to pollutants, or seeking to optimise detoxification pathways.
Questions
It measures reduced (GSH) and oxidised (GSSG) glutathione to assess oxidative stress and antioxidant capacity.
It supports detoxification, immune defence, and protection against oxidative damage.
Yes. NAC, glutathione, and antioxidant supplements may influence results.
Fasting is not required.
Every 3–6 months when adjusting supplementation or lifestyle habits.
Dr. Vu Tran Bloody Good’s Chief Medical Officer
How to prepare
1. Prepare Your Kit
Wash your hands with warm water and dry them thoroughly. Lay out your kit’s contents — dried blood collection card, lancet, alcohol pad, gauze pad, bandage, and return envelope — on a clean surface. Warming your hands and shaking them gently can help increase blood flow for easier collection.
2. Collect Your Sample
Use the provided lancet to perform a quick finger prick. Allow one or more drops of blood to fall onto the designated circles on the dried blood spot card. Ensure the circles are fully saturated, but avoid touching the card with your fingers.
3. Let It Dry
Allow your blood spot sample to dry completely at room temperature before packaging. This usually takes a few minutes — do not cover or seal the card until dry.
4. Pack and Return
Once dry, place the card and all components back into the return envelope provided. Seal and mail it using the pre-paid return label. Your sample will be analysed at our specialised lab.
5. Receive Your Results
Lab analysis typically takes one week.
After the test
Once your results are ready, you can review them and discuss the findings with a qualified practitioner to interpret what they mean for your health and create an appropriate plan if needed.
Your test results will be available in your private dashboard. If there are any urgent issues, we'll let you know so you can follow up with your health professional.
Understanding results
You’ll receive measurements of reduced glutathione (GSH) and oxidised glutathione (GSSG). A higher GSH and a balanced GSH:GSSG ratio indicate strong antioxidant capacity. Low levels or an imbalanced ratio may reflect high oxidative stress, toxin exposure, or nutrient depletion.
