Methylene Blue Pharmaceutical Grade, USP Grade, Third-Party Tested Brain Health Dietary Supplement for Humans, No Formaldehyde, Made in USA (1% 237ml Bottle)

Methylene Blue Pharmaceutical Grade, USP Grade, Third-Party Tested Brain Health Dietary Supplement for Humans, No Formaldehyde, Made in USA (1% 237ml Bottle)

ASIN: B09JVXQRRP
Analysis Date: Dec 9, 2025

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Review Analysis Results

D
Authenticity Grade
42.00%
Fake Reviews
4.63
Original Rating
3.70
Adjusted Rating

Analysis Summary

This product listing shows a moderate level of suspicious review activity, scoring 42 on the fake percentage scale. The reviews present a polarized pattern with 6 out of 7 reviews being 5-star ratings, creating an artificially positive impression. The single 2-star review appears genuine in its critical assessment, which creates an unusual distribution where the only negative review seems more authentic than many of the positive ones. The verified purchase status of all reviews adds some credibility, but the content patterns raise concerns about coordinated promotion.

Several reviews exhibit promotional language patterns that suggest possible incentivized or artificial content. Review #2 states "I never knew what a normal brain felt like until now" and claims life-changing effects after two years of use, which uses exaggerated therapeutic language. Review #7 promotes a specific book by "Dr Mark Sloan" and declares "I will NEVER stop taking Methylene Blue on a daily basis," which reads more like marketing copy than authentic user feedback. These patterns suggest possible affiliate marketing or compensated review activity.

The authenticity indicators show mixed signals. Positive aspects include technical specificity in review #3 with detailed preparation instructions and review #4 mentioning three years of use with a specific source (Compass Labs). However, concerning patterns include review #5's vague directive to "Do your research on this product" without personal experience details, and review #6's focus on shipping rather than product effects. The emotional intensity in several reviews ("changes my life," "feel like a different person") seems disproportionate for a supplement review.

Key concerns include the high proportion of 5-star reviews with similar enthusiastic language, potential book promotion in review #7, and the contrast between the detailed negative review and the sometimes-vague positive ones. Positive indicators include the technical preparation details in review #3 and specific long-term usage mentions. The overall pattern suggests a product that may have some genuine users but also appears to be the subject of coordinated promotion efforts, possibly through affiliate marketing channels or supplement communities.

Key patterns identified in the review analysis include: exaggerated therapeutic claims, promotion of related products/books, vague recommendations without personal details.

Review Statistics

70
Total Reviews on Amazon
-0.93
Rating Difference

Price Analysis

This is a premium brain health supplement with pharmaceutical-grade credentials and a larger-than-average bottle size. Expect to pay more than typical methylene blue supplements due to its USP grade and third-party testing. For the best value, compare per-milliliter pricing against smaller bottles and wait for Amazon promotions or subscription discounts.

MSRP Assessment

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

Market Position

Positioning: Premium
Alternatives Range: $25-$60 for 30ml-60ml bottles
Value: Offers pharmaceutical/USP grade quality, third-party testing, and a larger 237ml size, which justifies a higher price point compared to standard supplements.

Buying Tips

Best Time to Buy: No strong seasonal patterns; monitor around major sales events like Prime Day or Black Friday.
Deal Indicators: Look for Subscribe & Save discounts, coupon clip offers, or bundled deals with related supplements.
Watch For: Be wary of prices significantly below $25 for this size/grade, as quality may be compromised; verify seller authenticity and check for third-party testing documentation.
Price analysis generated by AI based on product category and market research. Actual prices may vary. Last analyzed: Dec 9, 2025

Understanding This Analysis

What does Grade D mean?

This product has significant review authenticity issues. Many reviews show patterns consistent with fake or incentivized reviews. Exercise caution.

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 (4.63 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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