This Clinique High Impact Mascara claims to do everything- add maximum volume, definition, length and separation. I used it in Black 01 and it is indeed very black, which is perfect for my black eyelashes. I found it to be slightly volumising and thickening, making it good for daytime. I found the separation and lengthening to be ok. I think this mascara is for those who like natural definition from their mascara. I found the colour to be high impact but not the effect. The good news is it was easy to remove with a bi-phase eye-make up remover. Perhaps I’ll buy it as an everyday mascara or to wear to work as it didn’t provide me with the drama I wanted for a night out.