Nutricost sells L-theanine at 200 mg per serve in three listings at Supps247: L-Theanine 200 mg capsules in 30 and 240 count bottles, a second L-Theanine 200 mg listing, and L-Theanine Powder, a 100 g unflavoured tub with 500 serves.
At a glance
| Format | Detail |
|---|---|
| Capsules | 200 mg, 30 or 240 count |
| Powder | 200 mg per scoop, 100 g, 500 serves |
What to know
L-theanine is an amino acid found in tea leaves. Small trials have studied 100 to 200 mg for relaxation, and for attention when paired with caffeine. It does not usually cause drowsiness. It is not a treatment for anxiety or sleep problems. With the powder, measure carefully, since a serve is a very small amount.
Who should check first
- Blood pressure medicine: L-theanine may lower blood pressure slightly.
- Sedatives or stimulant medicine: check with your pharmacist.
- Pregnant or breastfeeding: check with your doctor first.
How to use and where to buy
Follow the directions on the label. Shop Nutricost L-Theanine online at Supps247 with Australia-wide delivery or click and collect, or browse more from Nutricost.
Checked against the product listings on 12 November 2026. Always read the label and follow the directions. General information, not medical advice.
