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?

9 reviews were analyzed for authenticity patterns.

What is the adjusted rating after removing fake reviews?

After removing suspicious reviews, the adjusted rating is 4.20 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.

Sodium Thiosulfate, Fine Crystals, 99.5% min., 500 Grams (1.1 lb.)

Name: Sodium Thiosulfate, Fine Crystals, 99.5% min., 500 Grams (1.1 lb.)
Brand: Amazon
SKU: B00JERVY5A
Availability: InStock
Rating: 4.2 (9 reviews)

ASIN: B00JERVY5A

Analysis Date: Nov 17, 2025 (re-analyzed Nov 17, 2025)

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Review Analysis Results

Authenticity Grade

28.00%

Fake Reviews

4.89

Original Rating

4.20

Adjusted Rating

Analysis Summary

The reviews show a mixed pattern with some legitimate characteristics but several concerning elements. Positive aspects include: diverse use cases (aquarium treatment, stain removal, hot tub maintenance), specific technical details about mixing ratios, and some verified purchase indicators. Concerning patterns include: extremely high 5-star concentration (8/9 reviews), several reviews with overly enthusiastic/exaggerated language ('Never lost a fish!', 'Huge money saver'), and one review referencing questionable health claims about 'candida protocol' and biofilm removal which may indicate unsubstantiated medical claims. The product appears to be sodium thiosulfate used for chlorine neutralization, and many reviews describe legitimate uses, but the overwhelmingly positive tone and lack of critical feedback raises suspicion about potential review manipulation.

Review Statistics

446

Total Reviews on Amazon

-0.69

Rating Difference

Price Analysis

Sodium thiosulfate is a specialty chemical where quality and reliability often outweigh minor price differences. Given the outstanding 4.89/5 rating from 446 reviews, this product appears to offer excellent value in the mid-range segment. Prioritize verified sellers with established reputations over the absolute lowest price.

MSRP Assessment

Estimated MSRP: Unknown

Source: Unable to determine

Amazon Price: Unable to compare

Market Position

Positioning: Mid-range

Alternatives Range: $15-$40 for 500g lab-grade chemicals

Value: The exceptional 4.89/5 rating suggests strong quality and reliability compared to lower-rated alternatives in this chemical category.

Buying Tips

Best Time to Buy: No significant seasonal patterns for lab chemicals; monitor for occasional Amazon promotions.

Deal Indicators: Look for Subscribe & Save discounts, bundled shipping with other lab supplies, or seller coupons.

Watch For: Watch for unusually low prices from new/unverified sellers, and verify purity certifications match the 99.5% min. claim.

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 (4.20 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 (4.89 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.