It usually retails at £5.99 which seems a fair price for what you're going to get.
For all you get up and go, but with a little bit of face on, this is great.
As the majority of liquid eyeliners conform to, it looks a tiny amount of product, but as always seems to go pretty far. After a few uses i had the horror of thinking mine was running out, becoming quite annoyed with how little was coming out on the applicator i stopped using it for a while, it only somehow occurred to me later, that you need to shake it to ensure a good covering. Quite the slow realisation, but better late than never.
That's a plus point, you only ever get as much as you need, and you can control the amount by shaking the product up for the right amount of time to suit you. It has the clicking noise similar to nail varnish bottles, telling you it's coating the 'brush'.
The applicator sets it apart from some of the other eyeliners around, which is what drew me to it initially as everyone was saying how easy it was to work with. Another plus, especially if you're only wanting a subtle line, this is great. The applicator is a felt like tip, set in a point, enabling you to create precise lines because of the thin nib.
In terms of creating wings, it's a little harder to create a smooth point compared with a traditional brush - in my opinion - but if you practise with the brush, a great wing can be created.
Application is easy, no matter what kind of line you want to create, it can be done with this product. I've noticed that if you apply a lot, you do notice a gloss affect, living up to the 'carbon gloss' title. But this is only with built up application, and it's not something i like to do as i find it catches the light and makes it look patchy.
I've noticed that streaks can happen, but it's usually only when you don't have enough product on the applicator.
A downside of the formula is that it flakes. I wore this for two long flights and found it only lasted about half the duration before it started to crack and leave a dotted line in place of a crisp one. For me, it's never lasted an entire day, and it's not really a product you can just reapply over the cracks, as it seems to flake even more.
This really let the product down, as you expect liquid liner to have superior staying power. It lasts better over an eyeshadow base, but this isn't something i want to have to do on a daily basis.
It's available in the carbon black, and also a black with gold glitters, which comes up as a dull black with shimmer, not to my taste, but would work well over a smoky eye to set it apart a little.
For the ease of application, i would consider buying it again, as in comparison to other liners, that trait has a chance of erasing the staying power problem. Maybe by the time i need another, L'Oreal will have brought out a new formula.