Market Research on Head Spa Services (July 2026)　Research Organization: Japan Marketing Research Institute　Survey Period: May 29, 2026 – July 30, 2026　Survey Scope: 6 major companies　Competitor Selection Criteria: Companies meeting both of the following conditions:　(1) Ranked within the top 1–100 search results for "head spa" (Search engine: Google; data extracted May 29, 2026) and operating an official corporate website　(2) Based on a survey of 100 respondents with prior head spa usage experience, achieving a consideration rate of 5% or higher — whether through structured survey responses or open-ended (free-text) responses　Survey Methodology: This research is based on a comparative analysis of aggregated data drawn from publicly available information and interviews with relevant parties, among other sources. Actual figures may differ from the results presented herein.　Remarks: Data current as of July 2026. This survey does not guarantee any specific effects, efficacy, or competitive superiority of the services referenced.