Bluebonnet L-Theanine 200 mg supplement bottle
Bluebonnet

L-Theanine 200 mg

What We Researched
1 active ingredient analyzed · 3 inactive ingredients decoded · 4 brand certifications checked · 1 retailer compared · Last updated: Mar 2026
100
Product Score Excellent
84
Brand Score Good

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
L-Theanine 200 mg
Bioavailability Excellent

Absorption Rating

  • L-Theanine Good
Other Ingredients Excellent

Fillers & Additives

  • Kosher Vegetable Capsules
  • Vegetable Magnesium Stearate
  • Vegetable Cellulose
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.

Kosher Vegetable Capsules Safe

It provides a vegetarian and kosher-friendly encapsulation option.

Vegetable Magnesium Stearate Safe

Prevents ingredients from sticking to equipment. Derived from vegetable sources.

Vegetable Cellulose Safe

Forms a vegetarian capsule shell alternative to gelatin.

Price Comparison

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

Brand Trust Report
Bluebonnet

Founded 1991 · Sugar Land, Texas, United States · 568 products · bluebonnetnutrition.com/

Certifications

4 certifications
Nsf Gmp Verified Source
Fda Gmp Inspections Verified Source
Non Gmo Project Verified Source
Usda Organic Verified Source

Transparency

4 claims
Third Party Testing Claim — Verified Source
Testing Lab Disclosure — Claimed Source
In House Testing — Verified Source

Violation History

3 incidents
Prop 65 Lead2016-08-29Source
Lawsuit Allegedly falsely promoting liquid vitamin B supplements as containing various amounts of B vitamins when they did not.2016Source
Lawsuit Allegedly falsely advertised a Betaine supplement as 'derived from beets' when it was claimed to be synthetic.2014Source
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Frequently Asked Questions
Is Bluebonnet L-Theanine 200 mg a good supplement?

Bluebonnet L-Theanine 200 mg 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 3 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, Bluebonnet, holds a brand trust score of 84/100 with 4 verified certifications including Nsf Gmp, Fda Gmp Inspections, Non Gmo Project, Usda Organic.

What are the ingredients in Bluebonnet L-Theanine 200 mg?

Bluebonnet L-Theanine 200 mg 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 Bluebonnet L-Theanine 200 mg safe to take?

Bluebonnet L-Theanine 200 mg has been analyzed for ingredient safety across all its components. All 3 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 Bluebonnet a trustworthy supplement brand?

Bluebonnet receives a brand trust score of 84/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1991 and headquartered in Sugar Land, Texas, United States, the company offers 568 products in their lineup. They hold 4 verified certifications including Nsf Gmp, Fda Gmp Inspections, Non Gmo Project, Usda Organic. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Bluebonnet has 3 historical regulatory incidents 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.