One of the most feared applications in beauty: putting liquid eyeliner on. If you manage to get one right, it’s sadly no guarantee the other one will follow suit. I’ve been painting on my cat flicks since I was a teenager, and have dabbled with plenty of brands and products. The messy, the crumbly, the kind that just wont come off. Yes, I’ve pretty much nailed the application now with a product I swear by, but my god have I had troubles along the way.