Fels Naptha Laundry Soap Bar & Stain Remover - Pack of 2, 5.0 Oz per bar

Fels Naptha Laundry Soap Bar & Stain Remover - Pack of 2, 5.0 Oz per bar

ASIN: B01N1ZHU12
Analysis Date: Sep 29, 2025

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Review Analysis Results

C
Authenticity Grade
25.00%
Fake Reviews
4.67
Original Rating
4.10
Adjusted Rating

Analysis Summary

The reviews show a mix of genuine and potentially suspicious content. While most reviews appear authentic with specific usage scenarios and personal experiences, there are concerning patterns: 1) Extremely high 5-star concentration (14/15 reviews are 5-star, 1 is 4-star, 1 is 1-star for shipping issue), 2) Several reviews use nearly identical phrasing about baseball stains and cleaning methods, 3) Some reviews contain marketing-like language that reads like product descriptions. However, the presence of a legitimate 1-star review about shipping problems and several detailed, specific usage stories provides credibility. The product itself (Fels Naptha) is a well-known legacy product with genuine fans, which explains some of the enthusiastic reviews.

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.

20,212
Total Reviews on Amazon
15
Reviews Analyzed
11
Genuine Reviews
4
Fake Reviews
-0.57
Rating Difference

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Price Analysis

Price analysis pending

Price insights will be available shortly.

Understanding This Analysis

What does Grade C mean?

This product has moderate review authenticity concerns. A notable portion of reviews show suspicious patterns. Consider reading reviews carefully before purchasing.

Adjusted Rating Explained

The adjusted rating (4.10 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 (4.67 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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