Sports nutrition · Pure

L-Theanine

Why Pure l-theanine?

  • 355 mg l-theanine per serving
  • Gluten-free

From the label’s panel and printed marks — not its marketing.

Supplement Facts

Serving size 1 Capsule(s)

L-Theanine355 mg

Full panel ↓

Sold as food, not medicine — no regulator checked that it works

355mgL-Theanine

Per serving · 1 Capsule(s)

At a glance

From the label as printed · NIH DSLD

What it is

Protein powder · Capsule

Per serving

355 mg l-theanine

365 servings per container

How to take it

Take 1 capsule daily or as directed by a physician.

One serving: 1 Capsule(s)

Label warning

If you are pregnant, nursing, or taking medication, consult your physician before taking this or any dietary supplement.

All warnings ↓
Independent testing

No third-party testing mark on the label

Marks like NSF Certified for Sport or Informed Sport mean batches are tested for banned substances. Their absence does not mean a product is contaminated — only that nobody independent has said it isn’t.

Good to know
  • Sports nutrition — claims are the manufacturer’s
  • Gluten-free
  • Adult (18 - 50 Years)

Supplement Facts

Supplement Facts

Serving size 1 Capsule(s)

Servings per container 365

Amount per serving% DV
L-Theanine355 mg†

† Daily Value not established.

Other ingredients: Gelatin Capsules

Transcribed from the label by the NIH Office of Dietary Supplements. What a label says is not independently verified. See the original label

How to take it

  • Suggested use: Take 1 capsule daily or as directed by a physician. Take with at least 8 oz of liquid.

The manufacturer’s directions, from the label.

Warnings on the label

  • If you are pregnant, nursing, or taking medication, consult your physician before taking this or any dietary supplement.
  • For adults only.

What no one has checked

Contents are declared by the manufacturer and are not verified by a regulator. Independent testing has repeatedly found amounts that differ from the label, and products that contain substances banned in sport. Third-party certification, where a product has it, is shown on this page.

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Details

BrandPure
NIH label ID248696
Label recorded2021-06-23

Source: Dietary Supplement Label Database · NIH Office of Dietary Supplements · retrieved 2026-09-21 · not reviewed by a nutrition professional