Shampoo-In Haircolor. One Application Lasts Up to 6 Weeks. Vitamin-Enriched, it Rejuvenates Hair. Fortified with a unique complex of vitamins and conditioners that rejuvenates hair; leaves hair thicker, fuller, healthier-looking. And it's gentle, not a drop of harsh ammonia. 5-Minute formula is fast and easy. This thick, no-drip haircolor is as easy as shampooing. It stays put. No mess. Rinse in 5 minutes and in the time it takes you to shave or shower, gray is gone. Blends away gray for a natural look. Actually targets gray and blends in several close, but slightly differently shades that match the rest of your hair perfectly. It looks so natural, even you can't tell where the gray was! It won't wash out, won't fade out, no matter how often you shampoo. Lasts until the gray grows back. Made in U.S.A.