Best L-Theanine for Sleep in Australia
Amino acid found in tea that promotes relaxation without drowsiness.. Compare prices across Australian retailers and find the best value.
Quick Summary
Dosage
200-400 mg/day
Time to Effect
1-2 weeks
From
$0.15/serve
Evidence
moderate (4/5)
Timing: Take 30-60 minutes before bed
Clinical Evidence
L-theanine supplementation and sleep quality: a systematic review
Systematic review of 9 studies found 200-400mg L-theanine improved sleep quality, reduced sleep latency, and enhanced next-day alertness without sedation in adults with stress-related sleep issues.
Effects of L-Theanine on Stress and Sleep Quality
PMID: 31758301L-theanine (200mg daily) significantly decreased sleep latency, reduced sleep disturbance scores, and increased sleep quality compared to placebo in adults with generalised anxiety.
Best Prices in Australia
L-Theanine 200 mg, 120 Veg Capsules
200 mg per serve · 120 serves · capsule
$0.15/serve
$17.99 total
NOW Foods L-Theanine 200mg 120 Veg Caps
200 mg per serve · 120 serves · capsule
$0.29/serve
$34.95 total
L-Theanine 200mg 60 Capsules
200mg per serve · 60 serves · capsule
$0.33/serve
$19.99 total
Nature's Own Stress & Sleep 60 Tabs
200 mg per serve · 60 serves · tablet
$0.42/serve
$24.99 total
Thorne Theanine 200mg 90 Caps
200 mg per serve · 90 serves · capsule
$0.47/serve
$42.00 total
Showing top 5 of 6 products. View all
Interactions to Watch
- Blood pressure medicationsminor— L-Theanine may have mild blood pressure lowering effects, potentially enhancing antihypertensive medications.
Other Supplements for Sleep
Get a Full Sleep Stack
L-Theanine is just one piece. Our AI builds a complete supplement stack tailored to your sleep goals, with dosages and prices.
Get My Sleep StackThis information is for educational purposes only and is not medical advice. Consult a healthcare professional before starting any supplement regimen. SuppUp earns affiliate commissions from qualifying purchases — this does not affect our recommendations.