My mood fluctuates between natural and natural plus.. thankfully @lashify has all the options. Today I tested the differnce between CORE A's and PLUS A's First eye I used A+10 & A+12 - this one is a bit finer and lighter. The second eye I used A10 & A12 - extremely similar but a bit more amplified and present. Next time I will try a stacking combo of these for a bit more drama (all still on the natural side) The verdict - all depends on the mood...but definitely add coffee!