Vital Nutrients L-Theanine - May Help Moderate Occasional Stress & Promotes Relaxation, 200 mg, 120 Vegan Capsules supplement bottle
Vital Nutrients

L-Theanine - May Help Moderate Occasional Stress & Promotes Relaxation, 200 mg, 120 Vegan Capsules

What We Researched
1 active ingredient analyzed · 2 inactive ingredients decoded · 2 brand certifications checked · 1 retailer compared · Last updated: Mar 2026
100
Product Score Excellent
81
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

  • Hypromellose
  • Tapioca Powder
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.

Hypromellose Safe

Forms vegetarian capsule shells. Dissolves easily in the stomach.

Tapioca Powder Generally_safe

It is used as a filler, binder, or thickener.

Price Comparison

Vitacost $68.90 $0.57 / serving
Best Price

Price History

Tracked across major retailers. Updated periodically.

$71$70$69$68$67 Mar 12 $68.90
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
Vital Nutrients

Founded 2001 · Middletown, CT, United States · 160 products · vitalnutrients.co

Certifications

2 certifications
Nsf Gmp Verified Source
Fda Gmp Inspections Verified Source

Transparency

4 claims
Third Party Testing Claim — Verified Source
Coa Availability — Claimed
In House Testing — Verified Source

Violation History

1 incident
Fda Warning Violations of cGMP regulations, including failure to conduct testing to confirm finished products met specifications for strength of each ingredient, failure to establish component specifications for raw materials, and failure to prepare and follow a written master manufacturing record.2011-02-18Source
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Frequently Asked Questions
Is Vital Nutrients L-Theanine - May Help Moderate Occasional Stress & Promotes Relaxation, 200 mg a good supplement?

Vital Nutrients L-Theanine - May Help Moderate Occasional Stress & Promotes Relaxation, 200 mg, 120 Vegan Capsules 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 with 120 servings per container. Of the 2 inactive ingredients, 1 are rated safe and 0 are flagged for review. The manufacturer, Vital Nutrients, holds a brand trust score of 81/100 with 2 verified certifications including Nsf Gmp, Fda Gmp Inspections.

What are the ingredients in Vital Nutrients L-Theanine - May Help Moderate Occasional Stress & Promotes Relaxation, 200 mg?

Vital Nutrients L-Theanine - May Help Moderate Occasional Stress & Promotes Relaxation, 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 Vital Nutrients L-Theanine - May Help Moderate Occasional Stress & Promotes Relaxation, 200 mg safe to take?

Vital Nutrients L-Theanine - May Help Moderate Occasional Stress & Promotes Relaxation, 200 mg, 120 Vegan Capsules has been analyzed for ingredient safety across all its components. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Vital Nutrients a trustworthy supplement brand?

Vital Nutrients receives a brand trust score of 81/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 2001 and headquartered in Middletown, CT, United States, the company offers 160 products in their lineup. They hold 2 verified certifications including Nsf Gmp, Fda Gmp Inspections. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Vital Nutrients 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.