i'm asian and i live in florida. My hair, unlike most of my asian friends, has an uncanny ability to stay really dark (i.e. no brown streaks from the sun). After two weeks use, i realized that the product is actually working. My hair has a nice shine, and rich color. It's subtle color... just enough to add depth to my hair. Though, it made me also realize i DO have some brown... i can now see the brown streaks... it looks kind of funky with blueness, so i maybe switching over to the red color and back to blue in the cooler seasons. and i was freaked out a little when i first used it. I comes out of the bottle looking like blue ink, but lathers white like any other shampoo.
