Transform your hair with Garnier \/ Permanent hair color, Olia, 4.0 dark brown. Experience vibrant, long-lasting color that nourishes as it dyes, thanks to the oil-based formula. Say goodbye to dull, flat shades and hello to rich, multi-dimensional color that covers grays flawlessly. The ammonia-free formula ensures a gentle application process, leaving your hair feeling soft and silky. With Olia's innovative technology, achieve a deep, lustrous brown hue that enhances your natural beauty. Enjoy the convenience of at-home hair coloring with professional-quality results. Whether you're looking to switch up your look or touch up roots, Garnier's Olia 4.0 Dark Brown is the perfect choice for radiant, healthy-looking hair. Elevate your hair dyeing experience with Garnier's trusted brand and embrace a new level of confidence in your hair color.