Reputation and viral appeal
Multiple reviewers explicitly mention the product is 'very famous' or bought based on brand reputation, with purchases driven by word-of-mouth and social influence rather than prior personal use.
Repurchase loyalty
Several reviewers note this is a 'material repurchase system' and explicitly state buying again, indicating high satisfaction-driven repeat purchases and customer lifetime value.
Seasonal foot care needs
Reviewers frequently cite summer wear (flip-flops, sandals, barefoot slippers) causing foot roughness, and winter dryness requiring intensive moisturizing—positioning the product as seasonal care essential.
Gift and personal recommendation
Reviewers mention introducing the product to friends and family, suggesting strong gifting potential and organic social proof within networks.