L Theanin, 408 mg je Kapseln - 180 Vegane Kapseln - 6 Monate Vorrat - Mit Schwarzer Pfeffer Extrakt & Vitamin B6 - L-Theanine aus Camellia Sinensis - Täglich 1 pro Tag - Glutenfrei - WeightWorld

L Theanin, 408 mg je Kapseln - 180 Vegane Kapseln - 6 Monate Vorrat - Mit Schwarzer Pfeffer Extrakt & Vitamin B6 - L-Theanine aus Camellia Sinensis - Täglich 1 pro Tag - Glutenfrei - WeightWorld

ASIN: B091FV1FHQ
Analysis Date: Jan 19, 2026 (re-analyzed Jan 19, 2026)

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Review Analysis Results

B
Authenticity Grade
15.00%
Fake Reviews
4.73
Original Rating
4.40
Adjusted Rating

Analysis Summary

The majority of these reviews appear genuine, with approximately 85% showing authentic characteristics. Most reviews are verified purchases (12 of 16), which significantly increases their credibility. The reviews span multiple languages (German, English, French, Spanish), include varied ratings (mostly 5-star but with one 4-star and one 2-star), and demonstrate diverse writing styles and personal experiences that align with genuine user feedback.

Strong evidence of authenticity includes detailed personal narratives with specific contexts. Review #1 describes gradual effects over weeks, review #5 provides extensive supplement experience spanning 23 years, review #10 offers a structured response format with personal anxiety context, and review #15 includes balanced perspective with both positive effects and limitations. The 2-star review (#16) provides critical comparison with other brands, which is unlikely in manipulated review sets. These reviews contain personal markers like specific dosage amounts, timeframes of use, and individual health contexts.

Minor concerns exist with a few extremely brief reviews that lack substance. Reviews #2 ('Gut gefallen'), #7 ('Gut'), #8 ('Konzentration, perfekt'), #9 ('Buen suplemento saludable y eficaz'), and #13 ('Good gives me focus') are very short and generic, potentially indicating low-effort reviews rather than manipulation. Review #14 ('Jammer dat er geen groter formaat is') is in Dutch and simply comments on package size without discussing effects, which could be authentic but minimal.

Overall, this appears to be a legitimate product with predominantly genuine user feedback. The detailed reviews outweigh the brief ones, and the presence of critical feedback alongside praise suggests organic reviewing. While a few reviews lack substance, they don't show clear manipulation patterns like repetitive marketing language or coordinated messaging. The product seems to deliver relaxation and focus benefits according to genuine users, with most reporting positive experiences.

Key patterns identified in the review analysis include: Multiple languages present, Varied review lengths from very brief to detailed, Includes critical feedback alongside praise.

Review Statistics

About Review Data Collection

We extract as much review data as Amazon makes available at the time of analysis. The amount may vary due to Amazon's rate limiting, regional restrictions, or other factors. Our analysis is based on the reviews we successfully collected.

2,128
Total Reviews on Amazon
15
Reviews Analyzed
13
Genuine Reviews
2
Fake Reviews
-0.33
Rating Difference

Want to analyze more reviews? Install the Null Fake Chrome extension to capture and analyze additional reviews as you browse Amazon.

Free, quick to install, and works on Chrome, Edge, Brave, and other Chromium browsers.

Price Analysis

This appears to be a competitively positioned L-theanine supplement with strong customer ratings. Given the 6-month supply and added ingredients, expect to pay €20-€30 for good value. Monitor Amazon for temporary discounts and compare with other reputable brands offering similar formulations.

MSRP Assessment

Estimated MSRP: Unknown
Source: Unable to determine
Amazon Price: Unable to compare

Market Position

Positioning: Mid-range
Alternatives Range: €15-€35 for 180 capsules
Value: Offers good value with 6-month supply, vegan formulation, and added black pepper extract for enhanced absorption compared to basic L-theanine supplements.

Buying Tips

Best Time to Buy: No strong seasonal pattern, but prices may drop during Amazon Prime Day or Black Friday sales.
Deal Indicators: Look for Subscribe & Save discounts, lightning deals, or coupon offers; compare price per capsule with smaller quantities.
Watch For: Watch for sudden price spikes above €35 for this quantity, and verify seller authenticity given the high rating.
Price analysis generated by AI based on product category and market research. Actual prices may vary. Last analyzed: Jan 19, 2026

Understanding This Analysis

What does Grade B mean?

This product has good review authenticity with minor concerns. While most reviews appear genuine, we detected some patterns that warrant mild caution.

Adjusted Rating Explained

The adjusted rating (4.40 stars) represents what we estimate this product's rating would be if fake reviews were removed. This product's adjusted rating is lower than Amazon's displayed rating (4.73 stars), suggesting positive fake reviews may be inflating the score.

How We Detect Fake Reviews

Our AI analyzes multiple factors: language patterns (generic vs. specific), reviewer behavior (history, timing), temporal anomalies (review clusters), verification status, sentiment authenticity, and statistical outliers. No single factor determines a review is fake - we look at the combination of signals.

Important Limitations

No automated system is perfect. Sophisticated fake reviews can evade detection, and some genuine reviews may be incorrectly flagged. Use this analysis as one data point in your purchasing decision, not the only factor. Reading actual review content yourself is always valuable.

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How Our Analysis Works

Detailed explanation of our AI methodology

Spotting Fake Reviews Yourself

10 warning signs to watch for

Frequently Asked Questions

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