I generally use the color NUCLEAR RED.
My hair doesn't normally take well to dye. I've bleached it, I've had it done professionally, I've tried all kinds of brands and colors. This is the ONLY brand that is super bright and lasts for a long amount of time. My hair even feels fresher after dying it! This all happens WITHOUT bleaching my hair, so that is less damage done to my hair.
I've been told by hairdressers that my hair looks professionally done after I dye it! I will never use any other brand of dye after going to Special Effects, which I've been using for 2 years when I dye my hair.