MAC My Mimi is a very warm-toned, medium copper with a metallic finish. It is a limited edition blush that retails for $45.50 and contains 0.35 oz.
MAC My Mimi Extra Dimension Skinfinish ($45.50 for 0.35 oz.) is a medium copper with warm, brownish undertones and a gold, sparkly finish. It had semi-opaque, buildable coverage, but the texture was drier and more prone to separating--perhaps the larger bits of sparkle strewn through the powder were the issue. It took more effort to blend and diffuse the edges, as the color looked somewhat patchy initially. I don't typically have issues blending out this formula, so I was rather surprised by the application of this shade on the skin. It lasted for eight hours before fading on me (out of the 10 the brand promises for this formula).
The price seems unusually high; regular Extra Dimension Skinfinishes are $33.00 for 0.31 oz., and while it's not unusual for MAC to up-charge for collaborations by a bit, it's usually a $1-4, not over $10. It seems like it is the result of the design of the powder itself, which is intricate to be sure, but I'm still surprised by the increase in price overall! I wish the product was better, too, because I know that this was one of the "star" products in the launch, to at least make the price more justifiable. It did seem, to my memory, that the price increases across most of the products in this collection were higher than normal (compared to past collaborations).
FURTHER READING: Formula Overview, which is a detailed review of the range as a whole.
A liquid-powder highlighter with prismatic reflections, designed to highlight and brighten your face for an intense, iridescent metallic finish. The creamy powder formula lasts up to ten hours.