Anyone who’s ever used a concealer to neutralise their lips before applying colour will understand my gasp of delight when this product first landed on my desk.

It’s essentially a cover-up for lips, but unlike a regular concealer, it’s more hydrating so it doesn’t cake. Instead, it preps lips with the perfect sheer covering of neutral, making them ready for anything you want to put on top.

‘Backstage, make-up artists have been mixing concealer with lip balm to create a base for lips for years,’ Mac’s Global Vice-President of Make-up Artistry Gordon Espinet, told me. ‘But the mixtures we came up with were either too slippery or too dry. When I went to R&D with this problem, they came up with Lip Erase.’

Normally only available in Mac Pro stores (of which there’s only one in the UK), the product hits nationwide counters today as part of Mac’s DSquared2 collection, but for a limited time only, so if you love it, it’ll be worth grabbing a few.

Another reason to stock up: if the shade matches your skin tone, Lip Erase happens to make a pretty great regular concealer, as well. I use it under my eyes where the skin’s quite dry and some ordinary cover-ups go flaky.