La Bonne Brosse La Bonne Brosse N.01 THE UNIVERSAL Petite Brush | Terracotta | La Bonne Brosse's n. 01 the universal petite brush is the ultimate totable hair brush, expertly designed to reveal irresistibly shiny and healthy-looking tresses while providing a regenerating scalp massage. Crafted in france, this innovative brush features natural boar bristles - rich in keratin - that work to envelop and strengthen the cuticles of hair, evenly distribute sebum, effectively detangle tresses and help remove build-up and impurities on the scalp to reduce shampooing frequency.