PHYTO COLOR in Chestnut 4 is a permanent hair coloring treatment that combines botanical research with advanced technology. This ammonia-free formula provides 100% gray coverage while respecting the hair and scalp, delivering a natural-looking chestnut brown shade with radiant shine. Key features: • Botanical-based permanent hair color • 100% gray hair coverage • Ammonia-free formula • Enriched with natural plant pigments • Gentle on hair and scalp • Long-lasting color results • Creates natural shine and radiance The formula contains high concentrations of botanical pigments like India wood, Brazilwood, madder, and coreopsis that have been traditionally used for their coloring properties. For optimal results, it's recommended to perform a patch test 48 hours before use. The smooth cream texture ensures even application from roots to ends without dripping. For best protection, using HUILE D'ALÈS before coloring is recommended.