Concubine is another shade from MAC's Fall/Winter collection with Jin Soon. I know not everyone likes the ideas of concubines, but that is another story and this is about a nail polish! Although, concubines are a part of Imperial China's history, so I can see why this is a name for a polish in this collection. Concubine is a deep red with red shimmer. Here it is applied with two coats:
It looks pretty light on my nails, but it is definitely the shade of the bottle in the second picture. The shimmer is very understated and can only be seen up-close or in bright lighting, but this is red we're talking about. I have red, long (compared to most people I interact with) in for your face nails, it definitely grabs people's attention.