La Bonne Brosse's large comb thoroughly detangles the hair without damaging the hair fiber. Made entirely of cellulose acetate, this sustainably sourced and biodegradable material, crafted in the Jura region of France, combines advanced technology with traditional expertise. Soft and gentle on the hair, this hair comb can be used as often as necessary on dry hair to style it or on wet hair, in the shower or after shampooing, to detangle. The wide, precise teeth detangle even the most stubborn knots.