PURE ORIGINAL INGREDIENTS L-Theanine 440 mg supplement bottle
PURE ORIGINAL INGREDIENTS

L-Theanine 440 mg Review

What We Researched
1 active ingredient analyzed · 1 inactive ingredient decoded · Last updated: Aug 2026
93
Product Score Excellent
57
Brand Score Poor

Two independent scores — the product and the brand behind it, never blended into one number. See our methodology.

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
L-Theanine 440 mg —
Bioavailability Excellent

Absorption Rating

  • L-Theanine Good
Other Ingredients Excellent

Fillers & Additives

  • Gelatin
Efficacy Very Good

Dosage Analysis

  • L-Theanine 440 mg High

Supplement Facts

Ingredient Amount % Daily Value
L-Theanine 440 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Gelatin Safe

Forms the capsule shell that holds the supplement contents.

Brand Trust Report
PURE ORIGINAL INGREDIENTS

· 152 products · puresupplementsco.com/

Transparency

1 claim
Third Party Testing Claim — True
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Frequently Asked Questions
Is PURE ORIGINAL INGREDIENTS L-Theanine 440 mg a good supplement?

PURE ORIGINAL INGREDIENTS L-Theanine 440 mg received a product quality score of 93/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 1 active ingredients with 100 servings per container. All 1 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, PURE ORIGINAL INGREDIENTS, holds a brand trust score of 57/100.

What are the ingredients in PURE ORIGINAL INGREDIENTS L-Theanine 440 mg?

PURE ORIGINAL INGREDIENTS L-Theanine 440 mg contains 1 active ingredients: L-Theanine (440 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is PURE ORIGINAL INGREDIENTS L-Theanine 440 mg safe to take?

PURE ORIGINAL INGREDIENTS L-Theanine 440 mg has been analyzed for ingredient safety across all its components. All 1 inactive ingredients — including capsule materials, fillers, and binders — are rated safe based on regulatory data and published safety research. This is a clean formulation with no controversial additives. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is PURE ORIGINAL INGREDIENTS a trustworthy supplement brand?

PURE ORIGINAL INGREDIENTS receives a brand trust score of 57/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. the company offers 152 products in their lineup.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records — read our methodology. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.