Key Takeaways:Scalp health, targeted solutions, and TikTok-driven hacks are dominating 2025 haircare trends.Core staples grow steadily, but niche categories surge with triple-digit gains.Both legacy brands and indie challengers thrive via trust, specificity, and virality.Spate’s latest Hair Care & Styling Trends Report (August 2025) reveals the seismic shifts shaping the category, drawing from 20+ billion Google search signals and 60+ million TikTok videos. The report introduces the Popularity Index, a measure that combines data from Google, TikTok, and Instagram, enabling brands to track what resonates most across digital ecosystems. At its core, the findings highlight three consumer drivers: root-cause scalp care, TikTok-driven styling hacks, and targeted benefit-led solutions. Below, BeautyMatter breaks down the data points brands need to know.Haircare Categories Expand:Shampoo remains the undisputed leader in the category, with a popularity index of 336.1 million, representing a year-over-year (YoY) increase of 49.6 million, or 17.3% growth.Conditioner follows as another high-volume staple, reaching a popularity index of 80.3 million, with 13.8 million new searches YoY and growth of +20.7%.Hair oil also shows strong traction, hitting a popularity index of 89.5 million, up 13.0 million YoY, translating to +17.0% growth.Dry shampoo surged with a popularity index of 31.6 million, gaining 7.8 million in annual growth, or a sharp +33.0% increase.Hair masks are trending upward as well, recording a popularity index of 31.5 million, up 7.6 million searches YoY for a +31.7% growth rate.Leave-in conditioners round out the top categories with a popularity index of 20.