The most common bristle materials are boar hair, nylon, and other plastic or synthetic bristles, which are used across both scalp tools and styling brushes.
Many products are labeled as suitable for all hair types. Reviewer notes specifically mention effectiveness on thick, curly, and thin hair, indicating broad suitability across textures.
Reported overall lengths range from about 8 inches up to roughly 10.24 inches. Widths vary by style—paddle and cushion brushes tend to be wider than compact scalp tools.
Styling brushes commonly pair tipped boar-and-nylon or nylon-only bristles with a flexible cushion base. Some models also incorporate ceramic-coated rims or tourmaline‑ionic finishes to retain heat and enhance shine for faster blow-drying.
Cleaning brushes are often made from sturdy plastic and may have bristles treated with an antimicrobial agent to resist odors. Some models are rated as dishwasher‑safe for deeper cleaning (claims note sanitization in the dishwasher up to 20 times).
Personal and makeup brushes are typically cleaned with soap and water. Some cleaning and dish brushes are designed to be sanitized in the dishwasher for deeper cleaning—manufacturer notes indicate dishwasher sanitization up to 20 cycles for certain models.