For Effect is a dark charcoal black with silver sparkle. The sparkle gives it a grittier texture, though not as gritty as Buried Treasure. I tried wearing it as an eyeliner, and it was such a pain to use. It did not want to apply opaque, and a few hours later, I had silvery bits underneath my eye. Chanel Mirifique is similar but has less fall out and goes on more opaque.