"This was the first time someone showed me what was happening and what to do about it. "
Practitioner only
L-methionine
Methionine for methylation and liver health
L-methionine is an essential amino acid and key methyl donor, supporting the methylation cycle, glutathione synthesis, liver health and sulphur-containing amino acid metabolism.
TGA-listed AUST L
Practitioner-grade formula
Clinician-reviewed before dispatch
Ships in 2 business days
What's in it
Each ingredient is in its most bioavailable form, at a clinically meaningful dose. No fillers, no token amounts, no marketing-led blends.
Free essential amino acid
L-Methionine
The essential sulphur amino acid. SAMe precursor. Required for methylation, transsulphuration, glutathione and taurine synthesis.
Included
Always read the label and follow directions for use. Vitamins and minerals can only be of assistance if dietary intake is inadequate. If symptoms persist, consult a healthcare professional.
How to take it
Simple to take, with a few timing notes that make a real difference to absorption.
As directed by your practitioner.
Methionine supplementation can raise homocysteine if B12, B6 and folate are inadequate, ensure these cofactors are sufficient. Do not use high-dose methionine without practitioner guidance. Dietary supplements should not replace a balanced diet.
Real people. Real impact.
Patients following practitioner-designed protocols, sharing their outcomes in their own words.
"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."
Trustpilot · 4.8/5 from 892 reviewsGoogle · 4.9/5 from 412 reviewsPractitioner referral · 97% would recommend
Part of the Energy & Fatigue hub. Explore all protocols, supplements and investigations.
Back to Energy & Fatigue →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 protocol built around your results, not a generic recommendation.