FHI Heat UNbrush Detangling Brush for Pain-Free Brushing on All Wet or Dry Hair Types — Durable DuoFlex Anti-Static Bristles, Lightweight Handle, Vented Hair Brush, Grey

Buy an unbrush. It's as good as they say about tangles and knots. I have a sensitive head and hair down to my butt. The knots are 90% easier to remove than a standard brush.