Vitamatic L-Theanine, 240 Tablets, (200 mg per Tablet) supplement bottle
Vitamatic

L-Theanine, 240 Tablets, (200 mg per Tablet)

What We Researched
1 active ingredient analyzed · 6 inactive ingredients decoded · 2 retailers compared · Last updated: Mar 2026
100
Product Score Excellent

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
L-Theanine 400 mg +
Bioavailability Excellent

Absorption Rating

  • L-Theanine Good
Other Ingredients Excellent

Fillers & Additives

  • Microcrystalline Cellulose
  • Dicalcium Phosphate
  • Stearic Acid
  • Silicon Dioxide
  • Vegetable Magnesium Stearate
  • Croscarmellose Sodium
Efficacy Excellent

Dosage Analysis

  • L-Theanine 400 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
L-Theanine 400 mg +

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Microcrystalline Cellulose Safe

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

Dicalcium Phosphate Safe

Serves as both a filler and a supplemental source of calcium and phosphorus.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Silicon Dioxide Safe

Prevents clumping and ensures consistent dosing.

Vegetable Magnesium Stearate Safe

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

Croscarmellose Sodium Safe

Helps tablets break apart and dissolve quickly in the stomach.

Price Comparison

iHerb $14.93 $0.12 / serving
Best Price
Target $16.99 $0.14 / serving

Price History

Tracked across major retailers. Updated periodically.

$16$15$14$13$12 Mar 12 $14.00
iHerb

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

Brand Trust Report
Vitamatic

Founded 2020 · Elmwood Park, NJ, USA · 237 products · vitamatic.com/

Transparency

1 claim

Violation History

1 incident
Prop 65 Not specified in the notice2023-10-12Source
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Frequently Asked Questions
Is Vitamatic L-Theanine, 240 Tablets a good supplement?

Vitamatic L-Theanine, 240 Tablets, (200 mg per Tablet) 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. All 6 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives.

What are the ingredients in Vitamatic L-Theanine, 240 Tablets?

Vitamatic L-Theanine, 240 Tablets contains 1 active ingredients: L-Theanine (400 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Vitamatic L-Theanine, 240 Tablets safe to take?

Vitamatic L-Theanine, 240 Tablets, (200 mg per Tablet) has been analyzed for ingredient safety across all its components. All 6 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.

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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.