BFF happens to be one of our fave abbrevs and as such, we don't take the term lightly. To earn the title of Best Friend, you've got to prove yourself. Our closet-sharing, hard truth-giving, sentence-finishing, red wine-sipping BFF did so many years ago. And while no beauty product will ever come close to her, unfortunately she has a life that doesn't consist of being by our side 24/7, and she also won't fit in our handbag. That's where our beauty BFFs come in. The products that exceed our expectations and make our lives easier earn a special place in our hearts. We've been on good terms with a nifty little treasure known as invisible lip liner for some time now and we have three reasons why you should be too.

1. It's lip liner for the lip liner adverse.

If you're still one of those people who think lip liner is so 1992, invisible lip liner is the lip liner for you. It's clear so the likelihood of ending up with a ring around your lips stained two shades darker than the rest of your mouth is, exactly, zero. Trust us, this is not your grandma's lip liner. Not a mauve or dusty rose in sight-actually invisible lip liner just may be the lip liner of the future; trendsetters take note.

2. It's reversible.

You know that excitement you get when you're "just browsing"? You pick up a jacket and OMG it's reversible!? That's invisible lip liner. You can wear it two different ways, because who doesn't love a good twofer? To prolong the wear of lipstick, use it as a primer to line and fill in your lips (as you would any lip liner). You can also use it to line the outer perimeter of lips just outside the natural lip line. This creates a barrier effect to prevent bleeding and also fills in fine lines around the mouth.

3. It's like lip liner for dummies.

It's foolproof. Yes, you've probably heard that product claim come out of the mouths of beauty girls many times before (guilty as charged), BUT this time it's actually true. One unexpected bauble with the hot pink liner and your perfect cupid's bow is shot. One slip with invisible lip liner and no one will be the wiser. It's the lip liner you can apply in your car (not that we would ever recommend doing that). Now that you know why you need invisible liner in your life, here are our top picks (who knows, they may become your next bestie): Urban Decay 24/7 Glide On Lip Pencil in Ozone , Lancôme Le Lipstique Lip Contouring Stick with Brush in Clair , No Bleeding Lips Secret Lip Liner, and Maybelline Color Sensational Lip Liner in Clear . Have you ever tried invisible lip liner? We want to hear your thoughts. Tell us what you think in the comments below. Photos: Thinkstock