Spate：2025年美容行业专属见解报告（英文版）

The Popularity Index combines data from digital platforms— currently including Google and TikTok— to show how popular a category or trend is. For example, looking at the graph on the right, the trend for “Toner” in the US grew by 41.7% over the past year. The index measures how “Toner” compares to all other beauty trends on these platforms. It adjusts for growth differences on each platform to accurately reflect the increase in popularity