The primer can be used alone to tint lashes for a natural understated look, underneath mascara to amplify lash length while boosting the performance of the other product, or over the top of mascara to set lashes for a water-resistant and flake-proof finish. Its three functions ensure this is one product you never knew you needed, helping to create a lashline that before now I've only ever been able to create with individual lash extensions. (That's testament to it's performance!)
Although I wouldn't use this alone (the result is very subtle and doesn't provide any visible length or volume,) it's somewhat amazing when used beneath my usual mascaras; it helps to create a base on which the product can cling to, building up a result that's longer and fuller than without the primer. If you remember the double-ended mascaras of some years ago, that would load your lashes with white fibres which would help create length, this is a zooped-up version fit for the woman of 2015 with no flaking or annoying white specks to cover.
I wouldn't necessarily use this every day, but after using it to create a really powerful lash line with tonnes of volume on Saturday night, it's become a firm favourite for weekends. The lightweight formula doesn't overload lashes or cause clumping, but simply makes it easy to apply mascara over the top and ensure the result is flutter worthy. Like a traditional primer, it's hard to understand what benefit such a product can bring until you've tried and tested it yourself - but suffice to say it's definitely something to splurge on come payday.
The Estee Lauder Little Black Primer is available now in Boots stores and Boots.com priced £20.00.