Hair Dye Shampoo, Nova Hair Instant Dye Shampoo, Hair Color Shampoo for Hair Description Your Dream Shade in Just One Wash. Your search for an instant hair color boost ends here. Whether you want to cover early grays or refresh your hair with a new shade, NovaHair's innovative formula delivers natural-looking, vibrant results in just 10 minutes. Color lasts up to 4–6 weeks. Safer and More Effective Than Traditional Dyes. Many conventional hair dyes contain harsh ingredients like ammonia and peroxide, which can damage hair and irritate the scalp. Our ammonia-free and peroxide-free formula helps maintain the hair’s natural moisture and texture while minimizing the risk of irritation. Key Features: - Lasts 4–6 weeks - 100% vegan formula - No staining - Visible results in 10 minutes Cover Color Mistakes and Enhance Natural Tone. This shampoo not only covers grays and adds rich color but also helps correct unwanted tones from previous coloring treatments. It works to refresh faded color, improve hair appearance, and support healthier-looking hair. Gentle Ingredients for All Hair Types. Developed with care, our formula is designed to be suitable for all ages, genders, and hair types. Enriched with naturally derived ingredients known for their nourishing properties, it helps revitalize and condition hair with every use.