Dark eyebrows.

I had my eyebrows micro bladed with a warm brown 29thMay 2016. They went very dark Practically black. They have faded a tiny amount. The technician said that even though the colour she put on was WARM they have healed cool. I was due for a top-up on the 22nd July but was advised to leave my top up until they have faded substantially. (If they fade at all). CAn you tell me why this has happened.? My next appointment is 30th September 2016 

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