I think this eyeliner is definitely one of my favourites! I Love everything about this eyeliner. I have very oily skin so when I tried this I was a little anxious to see if it would stay. AND IT DID. The smooth consistency allows for easy application which helps, especially when making wings on your eye lids. This is my go to product for an all day event, school, and everyday occasion. It doesn't smudge or flake. The only downside that it requires a bit more time to put on when compared to a pencil or ink eyeliner. Other then that it is a good find. (:

You have to buy this! I will never waste my time with a mass-market line again. This does not smudge or smear to the upper lid of your eye! and the colour! It is perfect. The black is a true, deep back!

Make sure you get a nice angle brush to compliment this and use it effectively!

I've been using MAC Fluidline for at least four years now religiously. It goes on smooth, dries instantly and only takes one swipe to get the perfect darkness. I also have very oily eyelids and find the fluidline doesn't budge. I love the freedom of using a brush to get it as thick or thin as I like. It also lasts FOREVER, but it does tend to dry up before you can use it all.

Love this product (would love it even better if I could apply it once instead of 4 times, lol). It lasts forever (doesn't dry out), is easy to use, stays on all night (haven't noticed any flaking or anything) and has a great consistency. Very much recommend this product!

This is definitely a good product. MAC always has great quality makeup and this eyeliner is no exception. My only judgement is that I just don't find this product very convenient. I prefer using the liquid eyeliner rather than buying a pot of the Fluidline and using a separate eyeliner brush. However, aside from that, it's a good product.

its really good lasts so long had it for a year now and its not even half way doesn't dry out, its long wearing but I wouldn't say 24 hours, but so amazing glides on seemlisly and I have it in black track and my mom owns a purple shade which is equally gorgeous

Great for oily eyes! it is super expensive but the liner lasts on skin, as well as the eyeliner itself I've had mine for a few months now and wear full make-up every day! Highly recommend!

Love everything about this eyeliner. Has amazing staying power on my oily skin. The smooth consistency allows for easy application. You can create a graphic eye look or also smudge it out for a more natural finish. This is my go to product for an all day event. It doesn't smudge or flake. The only downside that it requires a bit more time to put on when compared to a pencil or ink eyeliner.

The fluid line has a smooth texture but I find that it smudges and it doesn't set fast enough.

This is the only product I have found that does a great job at perfect lines without being too thick.