L-Theanine Review
Product Analysis
Transparency Excellent
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| L-Theanine | 200 mg | * |
Bioavailability Excellent
Absorption Rating
- L-Theanine Good
Other Ingredients Excellent
Fillers & Additives
- Cellulose
- Rice Concentrate
- Rice Bran
- Water
Efficacy Excellent
Dosage Analysis
- L-Theanine 200 mg Effective
Supplement Facts
| Ingredient | Amount | % Daily Value |
|---|---|---|
| L-Theanine | 200 mg | * |
Other Ingredients
Is Premier Research Labs L-Theanine a good supplement?
Premier Research Labs L-Theanine 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 60 servings per container. All 4 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, Premier Research Labs, holds a brand trust score of 72/100 with 3 verified certifications including NSF Certified, USDA Organic, Non-GMO Project Verified.
What are the ingredients in Premier Research Labs L-Theanine?
Premier Research Labs L-Theanine 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 Premier Research Labs L-Theanine safe to take?
Premier Research Labs L-Theanine 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 Premier Research Labs a trustworthy supplement brand?
Premier Research Labs receives a brand trust score of 72/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. the company offers 29 products in their lineup. They hold 3 verified certifications including NSF Certified, USDA Organic, Non-GMO Project Verified. 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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