If you forced me to pick one desert island beauty product, I wouldn’t have to think for long.

I’ve always been obsessed with lipstick, loving its instantly transformative effect. It brightens, it animates, it puts a pep in my step and a sparkle in my eye. And it has range too: I can swipe it on my cheeks for a cheat’s blush or daub it on eyelids as an eyeshadow hack.

The only thing I don’t love about lippie? The maintenance. Rich colour needs constant reapplication, especially after eating and drinking.

I’ve dabbled with lip stains before, but few have measured up to the marketing. I like to think of myself as an optimist, so when my algorithms clocked that I had become fascinated by Wonderskin, a long-lasting makeup brand that’s wildly popular in the US, I knew it was only a matter of time before I caved in.

The all-vegan range began with lip tints, or Wonder Blading Lip Stain Masques, and the claim is as bold as the colour range: no-fade shade that lasts ‘all day’. The spiel promises it won’t budge, even when adding lip balm on top. What sorcery, I wondered?

Then my hardened journalistic skills kicked in. How long is ‘all day’, exactly? I made it my mission to find out.

There are 16 colours (£18 each) to choose from, all in the nude/red/berry colour wheel to suit all complexions. Whichever hue you go for, they’ll look exactly the same emerging from the tube; a strange metallic blue. There’s a touch of Cyber Dog about it, but the only raving you’ll do is about the final colour, so swallow your hesitancy and get swiping.