HQ9 Replacement Heads, Shaver Heads Blades Cutter Replacement for Compatible with Philipss Nore-lcos SpeedXL 8240XL 8140XL 8150XL 8160XL 8170XL, 8100 Series, 8200 Series, 9100 Series, and PT/AT900

The review set shows mixed authenticity with several concerning patterns but also legitimate characteristics. The product appears to be a generic replacement part for Norelco/Philips razors, which typically generates polarized reviews. Key findings: 1) Rating distribution is highly polarized (7 negative 1-2★ vs 5 positive 5★), common for aftermarket parts but also a manipulation red flag; 2) Multiple reviews reference long-term brand loyalty (30-50 years) in similar phrasing, potentially manufactured credibility; 3) Several reviews contain unusually detailed complaints about shaving performance with repetitive language about 'rubbing multiple times' and 'not cutting whiskers'; 4) However, the negative reviews show authentic frustration with specific performance issues, and the positive reviews are relatively generic but plausible. The 28% fake estimate accounts for likely manipulation in both positive and negative directions, but most reviews appear to reflect genuine customer experiences with a problematic product.