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HistoryCustomer complaints
What customers complain about, by product category
Complaint topics ranked by count, from Amazon's review highlights. 9 categories, 65 products and 120,583 negative mentions, read on 12 November 2026.
Updated
| Category | Top complaint | Negative mentions | Products |
|---|---|---|---|
| Protein Powder | Taste (7,126) | 17,095 | 8 |
| Collagen Powder | Taste (8,713) | 27,067 | 8 |
| Greens Powder | Taste (4,837) | 8,366 | 8 |
| Vitamin C Serum | Visible skin results (3,603) | 13,871 | 5 |
| Air Fryer | Durability and reliability (2,502) | 9,244 | 7 |
| Robot Vacuum | Cleaning performance (3,425) | 13,497 | 7 |
| Electric Toothbrush | Durability and reliability (6,583) | 23,720 | 8 |
| Standing Desk | Durability and reliability (1,241) | 5,545 | 7 |
| Dry Dog Food | Digestion (710) | 2,178 | 7 |
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