Derby Premium Double Edge Razor Blades, 100 Count

Derby Premium Double Edge Razor Blades, 100 Count

ASIN: B01M1HF9M7
Analysis Date: Feb 2, 2026 (re-analyzed Feb 2, 2026)

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Review Analysis Results

B
Authenticity Grade
10.00%
Fake Reviews
4.56
Original Rating
4.30
Adjusted Rating

Analysis Summary

The overwhelming majority of these reviews appear genuine, with only one review showing potential manipulation patterns. All reviews are verified purchases, which significantly increases their authenticity likelihood. The reviews display diverse perspectives, varied writing styles, and specific personal experiences that align with genuine user feedback for a consumable product like razor blades. High ratings are expected for a quality product that meets user needs, and the presence of both positive and critical reviews further supports authenticity.

Strong evidence of authenticity includes detailed personal context in multiple reviews. Review #2 from a Master Barber provides professional credibility with specific observations about blade performance on sensitive skin and coarse beards. Review #5 offers highly personal context about collecting blades and previous experience with Derby Extras, while Review #7 provides balanced criticism comparing these blades to ASTRA with specific performance issues. These reviews contain the kind of nuanced, individual perspectives that are difficult to fabricate consistently.

The only concerning review is #9, which consists of generic praise without specific details about the product experience. This brief, vague review lacks the personal context and specific observations found in the other reviews. However, this represents just one out of nine reviews, and even generic positive feedback can sometimes come from genuine customers who simply don't elaborate.

Overall, this review set demonstrates strong authenticity signals with diverse perspectives, specific product experiences, and appropriate variation in ratings. The single potentially suspicious review is outweighed by eight clearly genuine reviews with detailed personal experiences. The low fake percentage reflects that most reviews show clear genuine characteristics while acknowledging one outlier that lacks specificity.

Key patterns identified in the review analysis include: Professional/user expertise mentioned, Specific performance comparisons to other brands, Personal usage habits and context.

Review Statistics

5,605
Total Reviews on Amazon
-0.26
Rating Difference
Editor's Analysis

Navigating the Derby Premium 100-pack: What Canadian Shavers Need to Know

When considering Derby's 100-count blade pack, Canadian buyers should understand this product represents a specific shaving philosophy: moderate sharpness designed for sensitive skin and daily use. Unlike aggressive blades that prioritize closeness above all, Derby Premiums are engineered for comfort and forgiveness, making them a strategic bulk purchase for those whose skin reacts poorly to sharper alternatives.

Key Considerations Before Buying

  • Derby Premium blades are known for a smoother, less aggressive cut than brands like Feather or Astra, which is ideal for preventing razor burn but may require more passes for those with coarse beards.
  • Purchasing a 100-pack commits you to a single blade type for years; ensure your razor handle (e.g., Merkur, Edwin Jagger) pairs well with Derby's moderate blade exposure before bulk buying.
  • The 'Premium' designation differentiates these from Derby's standard Extra blades, featuring a platinum coating for enhanced durability and glide, a key factor in their 4.3/5 adjusted rating.

What Our Analysts Recommend

For double-edge blades, consistency across the pack is paramount. Genuine quality is indicated by uniform blade coating (no discoloration), precise alignment in the razor, and consistent performance from the first shave to the last. Reviews mentioning 'no duds in the pack' signal good manufacturing control.

Razor Blades & Cartridges Market Context

Market Overview

The double-edge blade market in Canada is bifurcated between ultra-sharp precision blades (Feather, Kai) and smoother, comfort-focused options like Derby. Bulk 100-packs dominate value-seeking traditional shavers moving away from expensive cartridge systems, with Derby occupying a middle-ground position on the sharpness spectrum.

Common Issues

Common frustrations include blade inconsistency within bulk packs, corrosion from improper storage in humid bathrooms, and mismatches between blade aggression and razor head geometry. Some users also report that smoother blades like Derby can tug if not used with a sufficiently aggressive razor angle.

Quality Indicators

Beyond brand, look for platinum or polymer coatings for smoothness, stainless steel construction for rust resistance, and packaging that protects edges from damage. A high volume of verified purchase reviews discussing long-term consistency, like those for this Derby pack, is a strong positive signal.

Review Authenticity Insights

Grade B Interpretation

A Grade B with a 10% estimated fake review rate for this product is relatively strong in the consumables category, where incentivized reviews are common. It indicates the overwhelming majority of the 5,605 reviews are authentic verified purchases, providing a reliable sample of long-term user experience.

Trust Recommendation

Focus on the 4.3 adjusted rating from authentic reviews rather than the slightly higher 4.56 raw average. Pay particular attention to verified reviews from users with similar beard types and skin sensitivity to yours, as performance is highly subjective. The high verification rate boosts confidence in the described experiences.

Tips for Reading Reviews

For blades, prioritize reviews detailing 5+ shaves per blade and comments on consistency across the 100-pack. Look for specific mentions of razor pairing (e.g., 'works well in my Muhle R89') and comparisons to other mid-sharpness blades like Personna or Shark. Disregard vague 'great shave' comments.

Expert Perspective

The Derby Premium 100-pack presents a compelling value proposition for a specific shaver: someone with sensitive skin or a lighter beard who prioritizes comfort and cost-per-shave over surgical closeness. The strong adjusted rating of 4.3/5 from authentic reviews suggests reliable satisfaction within that target audience. The product's position as a 'middle-of-the-road' blade makes it a safer bulk purchase experiment than ultra-sharp alternatives, but it may disappoint those accustomed to Feather-like efficiency. The verified purchase status of reviews adds significant weight to the consensus on smoothness and minimal irritation.

Purchase Considerations

Weigh your razor's aggression—mild razors pair better with sharper blades, while aggressive razors benefit from Derby's smoothness. Consider buying a 5- or 10-blade sampler first to test compatibility, despite the per-blade cost savings of the 100-pack. Your shaving frequency also matters; at 3-4 shaves per blade, this pack represents a 1.5 to 2-year supply.

Comparing Alternatives

Shoppers should compare Derby Premiums directly with other mid-sharpness bulk options like Astra Superior Platinum (100-pack) or Shark Super Chrome to find their ideal balance of smoothness and efficiency.

Price Analysis

Derby blades are positioned as a budget-friendly option in the double-edge razor market. For Canadian shoppers, look for prices around CA$20 or less for 100 blades to ensure good value. Always verify seller ratings and check shipping costs, as these can significantly impact the total price for Canadian customers.

MSRP Assessment

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

Market Position

Positioning: Budget
Alternatives Range: CA$15-CA$40 for 100-count double edge blades
Value: Derby blades offer solid performance at a lower cost than premium brands like Feather or Gillette, making them ideal for budget-conscious shavers who prioritize value over maximum sharpness.

Buying Tips

Best Time to Buy: No strong seasonal patterns; check around holidays like Father's Day or Black Friday for potential promotions.
Deal Indicators: Price below CA$20 for 100 blades, subscribe & save discounts, or bundled offers with other shaving products.
Watch For: Watch for third-party sellers charging significantly above CA$30, unusually low prices from unverified sellers (counterfeit risk), or inflated shipping costs.
Price analysis generated by AI based on product category and market research. Actual prices may vary. Last analyzed: Feb 2, 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 (4.30 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 (4.56 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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