What percentage of reviews are fake for this product?

28.00% of the analyzed reviews appear to be fake or inauthentic.

What is the authenticity grade for this product?

The product receives a grade of C based on review authenticity analysis.

How many reviews were analyzed?

11 reviews were analyzed for authenticity patterns.

What is the adjusted rating after removing fake reviews?

After removing suspicious reviews, the adjusted rating is 3.10 out of 5 stars.

How does this analysis help consumers?

This analysis helps consumers identify products with manipulated reviews, enabling more informed purchasing decisions based on genuine customer feedback.

Is this product priced fairly on Amazon?

Based on AI price analysis, this product is Unable to compare.

How is this product positioned in the market?

This product is positioned as a Budget option in its category.

Swanson NAC N-Acetyl Cysteine Antioxidant Liver Support & Amino Acids Supplement 600 mg 100 Capsules

Name: Swanson NAC N-Acetyl Cysteine Antioxidant Liver Support & Amino Acids Supplement 600 mg 100 Capsules
Brand: Amazon
SKU: B07F92YLRW
Availability: InStock
Rating: 3.1 (11 reviews)

ASIN: B07F92YLRW

Analysis Date: Nov 24, 2025

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Review Analysis Results

Authenticity Grade

28.00%

Fake Reviews

3.64

Original Rating

3.10

Adjusted Rating

Analysis Summary

The review set shows mixed authenticity signals. Positive aspects include detailed personal health experiences (reviews 1, 3, 5, 7 discussing trichotillomania and sleep issues) and verified purchase indicators. However, concerning patterns include: duplicate 5-star reviews (reviews 5 and 7 are identical), generic positive reviews with minimal substance (reviews 2, 6, 8), and a suspiciously high proportion of 5-star ratings (6 out of 10 reviews). The negative reviews (9-11) appear genuine with specific product complaints about expiration dates and packaging issues. The duplicate review and generic positive content suggest some artificial boosting, but the detailed health testimonials and legitimate negative feedback balance the overall assessment.

Review Statistics

2,106

Total Reviews on Amazon

-0.54

Rating Difference

Price Analysis

Swanson NAC is positioned as a budget-friendly supplement option. Given the 3.64/5 rating, check recent reviews for quality consistency. For best value, wait for Subscribe & Save discounts or coupon offers rather than buying at regular price.

MSRP Assessment

Estimated MSRP: $25.99

Source: Brand typical pricing

Amazon Price: Unable to compare

Market Position

Positioning: Budget

Alternatives Range: $15-$45

Value: Swanson typically offers good value in the supplement category with lower prices than premium brands like NOW or Jarrow Formulas.

Buying Tips

Best Time to Buy: Supplements often see discounts during January (New Year resolutions) and September (back-to-school/wellness focus).

Deal Indicators: Look for Subscribe & Save discounts, coupon checkboxes on the product page, or multi-bottle bundles for better per-unit pricing.

Watch For: Be wary of third-party sellers with prices significantly lower than Swanson's official store, as authenticity may be questionable.

Price analysis generated by AI based on product category and market research. Actual prices may vary. Last analyzed: Dec 1, 2025

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 (3.10 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 (3.64 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.