Core Viewpoint - The article discusses the controversy surrounding La Roche-Posay's thermal water spray, highlighting consumer skepticism about its high price despite containing only water, which the company defends as being sourced from natural thermal springs in France and processed to retain beneficial minerals and elements [3][6]. Group 1: Product Details - La Roche-Posay's thermal water spray is priced at 119 yuan for 150ml and starts at 129 yuan for 300ml, with the company emphasizing that the cost is justified by production expenses and the quality of the spray nozzle [3]. - The spray is claimed to contain unique minerals and trace elements that can soothe and enhance skin resilience against external factors [3]. Group 2: Expert Opinions - A skin care expert from Tongji University noted that while the spray can provide instant hydration, its effectiveness depends on usage and skin absorption, and it should not be relied upon for long-term moisture retention [6]. - The expert cautioned against excessive use of the spray, which could lead to over-hydration of the skin's outer layer and potentially damage the skin barrier [6]. Group 3: Company Background - La Roche-Posay is a brand under L'Oréal Group, which has faced legal challenges, including over a hundred lawsuits related to contract disputes [6]. - L'Oréal has recently dealt with product recalls in the U.S. due to contamination issues, although these incidents have not affected the Chinese market [7].