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?

15 reviews were analyzed for authenticity patterns.

What is the adjusted rating after removing fake reviews?

After removing suspicious reviews, the adjusted rating is 3.70 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 Mid-range option in its category.

STARWAX Détartrant Surpuissant pour Salle de Bains - 500 ml - Idéal pour Détartrer en Profondeur les Couches épaisses de Calcaire - Laisse le Support Brillant - Sans Trace

Name: STARWAX Détartrant Surpuissant pour Salle de Bains - 500 ml - Idéal pour Détartrer en Profondeur les Couches épaisses de Calcaire - Laisse le Support Brillant - Sans Trace
Brand: Amazon
SKU: B082VVCPRW
Availability: InStock
Rating: 3.7 (15 reviews)

ASIN: B082VVCPRW

Analysis Date: Nov 27, 2025

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Review Analysis Results

Authenticity Grade

28.00%

Fake Reviews

4.33

Original Rating

3.70

Adjusted Rating

Analysis Summary

The reviews show a mixed pattern with some legitimate characteristics but several concerning elements. Positive aspects include: natural variation in ratings (1-5 stars), detailed personal experiences, and mentions of specific usage scenarios. Concerning patterns include: duplicate review (R8DWC8FNJ0E2D appears twice with identical text), multiple reviews with very similar enthusiastic phrasing about effectiveness, and some reviews that follow a formulaic 'problem-solution-result' structure. The product has an unusually high proportion of 5-star reviews (9 out of 14), with many using nearly identical praise language about being 'très efficace' or 'super produit.' However, the presence of negative reviews about packaging issues and mixed language reviews (French, Portuguese, Italian) provides some authenticity balance.

Review Statistics

3,223

Total Reviews on Amazon

-0.63

Rating Difference

Price Analysis

Starwax Détartrant Surpuissant is a well-reviewed mid-range bathroom descaler. Without the current Amazon price, check if it falls within the €3-€8 range for good value. Prioritize purchasing during seasonal sales or via subscription to maximize savings on this effective household staple.

MSRP Assessment

Estimated MSRP: €6-€8

Source: Market research

Amazon Price: Unable to compare

Market Position

Positioning: Mid-range

Alternatives Range: €3-€12

Value: Starwax offers reliable performance at a competitive price point compared to premium brands like HG or Cillit Bang, with strong customer reviews suggesting good effectiveness.

Buying Tips

Best Time to Buy: Spring cleaning periods (March-April) and post-holiday sales (January) often feature discounts on household cleaning products.

Deal Indicators: Look for multi-pack discounts, subscribe & save options, or promotions bundled with other Starwax products.

Watch For: Be wary of third-party sellers charging significantly above €8 for a single 500ml bottle, as this likely represents poor value.

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 (3.70 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 (4.33 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.