Jarrow Formulas Theanine 200, 200 mg, 60 Veggie Capsules supplement bottle
Jarrow Formulas

Theanine 200, 200 mg, 60 Veggie Capsules

What We Researched
1 active ingredient analyzed · 3 inactive ingredients decoded · 5 brand certifications checked · 2 retailers compared · Last updated: Mar 2026
100
Product Score Excellent
83
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

  • Capsule (Hydroxypropylmethylcellulose, Water)
  • Microcrystalline Cellulose
  • Magnesium Stearate (Vegetable Source) and Silicon Dioxide
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.

Capsule (Hydroxypropylmethylcellulose, Water) Safe

It provides a convenient and tasteless way to deliver the supplement.

Microcrystalline Cellulose Safe

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

Magnesium Stearate (Vegetable Source) and Silicon Dioxide Generally_safe

They are used to improve the flow and processing of the supplement.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$29$28$27$26$25 Mar 12 $26.60
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
Jarrow Formulas

Founded 1977 · Los Angeles, California, USA · 138 products · jarrow.com/

Certifications

5 certifications
Consumerlab Verified Source
Fda Gmp Inspections Verified Source
Non Gmo Project Verified Source
Usda Organic Verified Source
Vegan Certified Verified Source

Transparency

3 claims
Third Party Testing Claim — Verified Source
In House Testing — Verified Source

Violation History

2 incidents
Recall Liquid L-Carnitine2018-01-15Source
Prop 65 Lead2017-09-07Source
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Frequently Asked Questions
Is Jarrow Formulas Theanine 200, 200 mg a good supplement?

Jarrow Formulas Theanine 200, 200 mg, 60 Veggie 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 Of the 3 inactive ingredients, 2 are rated safe and 0 are flagged for review. The manufacturer, Jarrow Formulas, holds a brand trust score of 83/100 with 5 verified certifications including Consumerlab, Fda Gmp Inspections, Non Gmo Project, Usda Organic.

What are the ingredients in Jarrow Formulas Theanine 200, 200 mg?

Jarrow Formulas Theanine 200, 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 Jarrow Formulas Theanine 200, 200 mg safe to take?

Jarrow Formulas Theanine 200, 200 mg, 60 Veggie 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 Jarrow Formulas a trustworthy supplement brand?

Jarrow Formulas receives a brand trust score of 83/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1977 and headquartered in Los Angeles, California, USA, the company offers 138 products in their lineup. They hold 5 verified certifications including Consumerlab, 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: Jarrow Formulas has 2 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.