NaturesPlus Pro L-Theanine 200, 60 Capsules (200 mg per Capsule) supplement bottle
NaturesPlus

Pro L-Theanine 200, 60 Capsules (200 mg per Capsule)

What We Researched
1 active ingredient analyzed · 5 inactive ingredients decoded · 2 retailers compared · Last updated: Mar 2026
100
Product Score Excellent
59
Brand Score Poor

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
L-Theanine 200 mg
Bioavailability Excellent

Absorption Rating

  • L-Theanine Good
Other Ingredients Excellent

Fillers & Additives

  • Vegetable Cellulose
  • Microcrystalline Cellulose
  • Stearic Acid
  • Silica
  • Hydroxypropyl Methylcellulose
Efficacy Excellent

Dosage Analysis

  • L-Theanine 200 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
L-Theanine 200 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Vegetable Cellulose Safe

Forms a vegetarian capsule shell alternative to gelatin.

Microcrystalline Cellulose Safe

Adds bulk to small-dose supplements to make tablets/capsules a manageable size.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Silica Safe

Prevents ingredients from clumping and improves powder flow.

Hydroxypropyl Methylcellulose Safe

It is used as a coating for tablets and capsules.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$10$9$8$7$6 Mar 12 $8.37$8.37
iHerb
Vitacost

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
NaturesPlus

Founded 1972 · Melville, New York, United States · 420 products · naturesplus.com

Transparency

3 claims
Third Party Testing Claim — Claimed
In House Testing — Claimed

Violation History

1 incident
Recall Keto Living Sugar Control Capsules2022-05-06Source
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Frequently Asked Questions
Is NaturesPlus Pro L-Theanine 200, 60 Capsules (200 mg per Capsule) a good supplement?

NaturesPlus Pro L-Theanine 200, 60 Capsules (200 mg per Capsule) received a product quality score of 100/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 1 active ingredients All 5 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, NaturesPlus, holds a brand trust score of 59/100.

What are the ingredients in NaturesPlus Pro L-Theanine 200, 60 Capsules (200 mg per Capsule)?

NaturesPlus Pro L-Theanine 200, 60 Capsules (200 mg per Capsule) contains 1 active ingredients: L-Theanine (200 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is NaturesPlus Pro L-Theanine 200, 60 Capsules (200 mg per Capsule) safe to take?

NaturesPlus Pro L-Theanine 200, 60 Capsules (200 mg per Capsule) has been analyzed for ingredient safety across all its components. All 5 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 NaturesPlus a trustworthy supplement brand?

NaturesPlus receives a brand trust score of 59/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1972 and headquartered in Melville, New York, United States, the company offers 420 products in their lineup. Note: NaturesPlus has 1 historical regulatory incident on record, which are factored into the trust score.

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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. 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.