L-Theanine, 200 mg, 120 Capsules
Product Analysis
Transparency Excellent
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| L-Theanine (Suntheanine®) | 200 mg | † |
Bioavailability Excellent
Absorption Rating
- L-Theanine (Suntheanine®) Good
Other Ingredients Excellent
Fillers & Additives
- Microcrystalline Cellulose
- Gelatin (Capsule)
- Silica
- Magnesium Stearate
Efficacy Excellent
Dosage Analysis
- L-Theanine (Suntheanine®) 200 mg Effective
Supplement Facts
| Ingredient | Amount | % Daily Value |
|---|---|---|
| L-Theanine (Suntheanine®) | 200 mg | † |
Other Ingredients
Price Comparison
Price History
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Is Source Naturals L-Theanine, 200 mg a good supplement?
Source Naturals L-Theanine, 200 mg, 120 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 All 4 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, Source Naturals, holds a brand trust score of 66/100 with 1 verified certifications including Fda Gmp Inspections.
What are the ingredients in Source Naturals L-Theanine, 200 mg?
Source Naturals L-Theanine, 200 mg contains 1 active ingredients: L-Theanine (Suntheanine®) (200 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.
Is Source Naturals L-Theanine, 200 mg safe to take?
Source Naturals L-Theanine, 200 mg, 120 Capsules has been analyzed for ingredient safety across all its components. All 4 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 Source Naturals a trustworthy supplement brand?
Source Naturals receives a brand trust score of 66/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1982 and headquartered in Scotts Valley, CA, USA, the company offers 837 products in their lineup. They hold 1 verified certifications including Fda Gmp Inspections. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. No regulatory violations or FDA warning letters were found in our research.
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