NOW Foods L-Theanine 200mg (120ct)
Best for: Anxiety-driven insomnia, ruminating minds, stackers with melatonin
Price across 1 retailer
Live as of 2026-07-0190-day price history
$16.99 – $21.99Current price is 10% below the 90-day average. Reasonable buy today.
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At a glance
Compare with alternatives
Quick verdicts for the trackers most often considered alongside the NOW Foods L-Theanine 200mg (120ct).
NOW Foods L-Theanine 200mg (120ct) vs Nature Made Melatonin 5mg (240ct)
The USP-verified melatonin your GP would actually recommend — same dose as prescription-adjacent formulations at a third of the price.
→ Jet lag recovery, shift workers, occasional sleep onset issues
NOW Foods L-Theanine 200mg (120ct) vs Doctor's Best High Absorption Magnesium Glycinate 200mg (240ct)
The highest-rated magnesium on Amazon for sleep — glycinate form is chelated for maximum absorption without laxative effects.
→ Restless legs, muscle tension, anxiety-driven insomnia, athletes
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Frequently asked questions
Does L-theanine make you sleepy?
Not directly — L-theanine promotes calm alertness, not sedation. It reduces the racing-mind that keeps you awake without knocking you out. Best paired with melatonin for sleep-onset help.
How much L-theanine for sleep?
200-400mg per dose. NOW at 200mg is the standard sleep dose; double for stronger effect. Studies use 200-400mg with no reported side effects.
NOW vs Suntheanine — which is better?
Suntheanine is L-theanine sourced from Taiyo — the most researched form. NOW uses Suntheanine in their L-theanine products (check label). Practical difference is negligible; NOW is cheaper.
Can I take L-theanine every day?
Yes — no known long-term risks at 200-400mg/day. Unlike melatonin, no dependency or tolerance issues reported. Safe for daily use.