NOW Foods

L-Theanine 200mg, 60 Capsules

NOW Foods L-Theanine 200mg delivers a concentrated dose of this amino acid, naturally found in green tea, in free-form capsules designed to support relaxed alertness and a calm mental state without drowsiness.

May be a fit for

  • Adults seeking L-theanine to support calm focus during stressful workdays
  • Those using L-theanine to may help maintain relaxation without drowsiness
  • Individuals supporting restful sleep onset with a 200mg L-theanine dose
$25.99

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CapsulesFormat
60 CapsulesPack size
The essentials

A closer look.

NOW Foods L-Theanine 200mg delivers a concentrated dose of this amino acid, naturally found in green tea, in free-form capsules designed to support relaxed alertness and a calm mental state without drowsiness. It's a straightforward option for those seeking focused calm during demanding days or winding down before sleep.

Why It's Worth Considering: At 200mg per capsule, this formulation offers a clinically studied dose of L-theanine, and NOW Foods maintains GMP certification and third-party testing across their line.

Inside the formula

Product details

Who it may suit

May be a fit for

  • Adults seeking L-theanine to support calm focus during stressful workdays
  • Those using L-theanine to may help maintain relaxation without drowsiness
  • Individuals supporting restful sleep onset with a 200mg L-theanine dose
  • Coffee drinkers looking for L-theanine to support balanced alertness

Considerations

  • Taking blood pressure medications (L-theanine may lower BP)
  • Very low blood pressure already
  • Generally very safe — one of the best-tolerated supplements
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Good to know

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Research & further reading

More category questions

How fast does L-theanine work?

L-theanine produces measurable alpha brain wave increases within 30-40 minutes of ingestion. Most people notice a sense of calm focus within 30-60 minutes. Unlike prescription anti-anxiety medications, it works quickly without sedation, cognitive impairment, or dependence.

Can I take L-theanine with coffee?

Yes — this is the most well-studied nootropic combination. L-theanine (200mg) smooths caffeine's stimulatory effects, reducing jitteriness and anxiety while preserving alertness and focus. Studies show the combination improves attention and task-switching better than either alone. The ideal ratio is 2:1 theanine to caffeine.

Is L-theanine safe to take every day?

Yes. L-theanine is one of the safest supplements available — it's the primary amino acid in green tea. Doses up to 400mg/day have shown no adverse effects in clinical studies. No tolerance builds up, no withdrawal, and no dependence. It can be taken daily for years without concern.

Does L-theanine help with sleep?

L-theanine improves sleep QUALITY without causing drowsiness — it promotes relaxation and reduces racing thoughts, making it easier to fall asleep. It's particularly effective for people whose insomnia is driven by anxiety or an overactive mind. Take 200-400mg about 1 hour before bed. Unlike melatonin, it won't make you groggy if you need to wake up.

Supplement information is provided for education and is not a substitute for personalized medical advice. Supplements are not intended to diagnose, treat, cure or prevent disease. Read the current product label before use.

NOW Foods - L-Theanine 200mg, 60 Capsules