Borderline or low-normal serum B12 results needing clarification
Unexplained fatigue, tingling, or cognitive changes alongside borderline B12
Vegetarian or vegan diet with B12 concerns
Long-term metformin or proton pump inhibitor use
Targeted Testing
Functional B12 Panel
A functional B12 panel — serum B12 plus the markers that reveal absorption and cellular utilisation
$299one-off, no subscription
4 tests · 4 biomarkers
NATA-accredited pathology
No GP referral needed
Results in 5-7 business days
Serum B12 measures circulating levels, but MMA and homocysteine reflect whether B12 is being used at the cellular level, and intrinsic factor antibodies can flag an autoimmune absorption problem. Together they support a more complete conversation with your health practitioner about B12 status.
No fasting required; Can be tested at any time of day; No supplement changes needed unless your GP advises
Recent kidney issues may elevate MMA and homocysteine independently of B12 status; test when well if practical
Health practitioners review these markers together with serum B12 and clinical context. Out-of-range results may prompt dietary review, repeat testing, or referral. Intrinsic factor antibodies help point to an autoimmune cause of low B12 (pernicious anaemia) when present.
Pick a test or panel and check out. No GP referral, no waiting room.
2
THIS WEEK
One quick visit
Walk into one of 1,900+ NATA-accredited collection centres. A single blood draw is all it takes.
3
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.
4
ONGOING
Track over time
Retest when it matters and watch your trends, so you can see what is actually changing.
Yes. You can order the Functional B12 Panel online from Clarity Labs without a GP referral. It's $299 for 4 tests, collected at any of 1,900+ NATA-accredited centres across Australia, with results in 5-7 business days via your secure online dashboard.
The Functional B12 Panel is $299 at Clarity Labs — a one-off price with no subscription, covering 4 tests (4 biomarkers) and collection at any of 1,900+ NATA-accredited centres nationwide.
This panel includes 4 tests measuring 4 biomarkers. Serum B12 measures circulating levels, but MMA and homocysteine reflect whether B12 is being used at the cellular level, and intrinsic factor antibodies can flag an autoimmune absorption problem. Together they support a more complete conversation with your health practitioner about B12 status.
No fasting required; Can be tested at any time of day; No supplement changes needed unless your GP advises
Results are typically available within 5-7 business days via your secure dashboard.
No referral is needed. Order directly and visit any of our 1,900+ collection centres at a time that suits you.
Recent kidney issues may elevate MMA and homocysteine independently of B12 status; test when well if practical
Your results come with personalised context and next steps. We recommend discussing them with your healthcare practitioner for a complete picture.
NATA-accredited pathologyCollected through Sonic Healthcare1,900+ collection centresNo GP referral needed
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.
