Gradually restores lost color to gray hair. Looks so natural no one can tell. Works for any color hair. Restores lost color to gray hair, gradually. Natural-Looking Color: Day by day, Grecian gradually replaces gray with natural looking color. You can stop anytime and leave a little gray, or keep going until all the gray is gone. And it looks so natural no one can tell you colored your hair - they'll just know you look great. Simply Comb it In: There's no mixing, no mess. Apply for 2-3 weeks and you'll get the exact color that's perfect for you. Then use once or twice a week to keep it that way. How Grecian Works: Different hair colors are the result of different amounts of melanin, nature's coloring protein. Darker hair simply has more melanin than lighter hair. As melanin production decreases with age, hair turns gray. Grecian has the unique ability to replace lost melanin with a similar-acting pigment. You can regain just the right amount of lost color by applying Grecian for fewer or more days. Grecian works for any color hair. Hair Looks Thicker, Healthier: Grecian contains a hair-thickening ingredient that works by expanding the hair's diameter. Plus it actually repairs and strengthens hair, reducing hair loss from breakage. The result: healthier, thicker-looking hair. Made in U.S.A.