Shiseido Professional Crystallizing Straight H1+H2 For Coarse or Resistant Hair 400g+400g by Unknown

Shiseido Professional Crystallizing Straight H1+H2 For Coarse or Resistant Hair 400g+400g by Unknown

ASIN: B00D5FZOD0
Analysis Date: Jan 10, 2026

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Review Analysis Results

B
Authenticity Grade
15.00%
Fake Reviews
4.40
Original Rating
4.10
Adjusted Rating

Analysis Summary

The majority of these reviews appear genuine, with approximately 85% showing authentic characteristics. The sample contains 14 reviews, with 12 being verified purchases (marked 'V') and 2 unverified ('U'). Verified purchases significantly increase authenticity likelihood, and most reviews contain personal context, specific experiences, or balanced perspectives that align with genuine user feedback. The product appears to be a hair treatment or straightening product based on the content of the reviews.

Strong evidence of authenticity includes detailed personal narratives like review #11, which provides specific instructions about washing with shampoo, using sulfate-free products, and wearing an old shirt. Review #7 offers a balanced 2-star perspective with specific disappointment about results not meeting expectations for the price. Review #13 mentions contacting the supplier about tracking issues, adding credibility through real-world purchase complications. Multiple reviews reference following instructions carefully, which suggests genuine users learning to use a technical product.

Minor concerns exist with two reviews (#1 and #6) that contain identical generic video description text unrelated to personal experience, which appears copied from product listing information rather than genuine user feedback. Additionally, review #3 contains somewhat generic praise without specific details, though it still mentions a before/after comparison. These represent a small minority of the total reviews.

Overall, this appears to be a legitimate product receiving mostly positive feedback from genuine users who appreciate its effectiveness when instructions are followed properly. The few questionable reviews are outweighed by numerous detailed, verified experiences that include both positive outcomes and constructive criticism. The product seems to work well for many users but requires careful application for optimal results.

Key patterns identified in the review analysis include: Multiple references to following instructions carefully, Before/after hair quality comparisons, Specific hair type descriptions (curly, thick, wavy).

Review Statistics

2,977
Total Reviews on Amazon
-0.30
Rating Difference

Price Analysis

This is a premium professional haircare product where pricing varies significantly by seller on Amazon. For German consumers, compare prices across multiple sellers, check for import fees if shipped from outside the EU, and consider waiting for sales events. Always verify seller ratings and return policies before purchasing.

MSRP Assessment

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

Market Position

Positioning: Premium
Alternatives Range: €15-€40 per 400g
Value: Shiseido Professional offers salon-quality performance at a premium price point compared to drugstore alternatives.

Buying Tips

Best Time to Buy: Look for deals during major sales events like Prime Day, Black Friday, or end-of-season promotions.
Deal Indicators: Price below €30 for the 400g+400g set, bundled with other haircare products, or with Subscribe & Save discounts.
Watch For: Be wary of sellers with minimal ratings, prices significantly below €20 (may indicate counterfeit), or unclear shipping/import fees.
Price analysis generated by AI based on product category and market research. Actual prices may vary. Last analyzed: Jan 10, 2026

Understanding This Analysis

What does Grade B mean?

This product has good review authenticity with minor concerns. While most reviews appear genuine, we detected some patterns that warrant mild caution.

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 (4.40 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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