Despite its popularity on TikTok, scalp oiling is nothing new. “It has deep cultural roots,” Dr. Kristina Collins, a double-board-certified dermatologist. “They include Ayurvedic traditions ...

Indeed, the experts at GK Hair confirmed that leaving conditioner in too long can lead to product build-up, scalp irritation and grimy residue. For beautiful strands, it's important to avoid a second ...