JFM H/COLOR H-45 Dark Brown is a men's hair color designed to provide a natural-looking dark brown shade with complete grey coverage. Its patented Grey Target Technology ensures that only the grey hairs are colored, maintaining subtle variations in your natural hair color. The formula works in just 5 minutes and lasts up to 6 weeks until the grey grows back. Enriched with nourishing ingredients like keratin, olive oil, and vitamin E, it leaves your hair looking thicker and fuller without the use of ammonia. This easy-to-use shampoo-in color treatment is perfect for achieving a professional-looking result at home.​