I actually got my 1st Revlon Retractable Lipliner free as part of a combo deal on one of their lip products (which I adore sooooo much). I got it in the colour "Plum" which is a very dark, deep berry colour. I adore wearing very dark Lipsticks so I have been putting it to good use ever since.
I love that it is retractable especially when traveling! The colour payoff is intense and pigmented. I have used it as a lipstick before, just covering my lips with the product and putting over a gloss and it works so well!! When you are wearing darker lip colours, you need it to stay put within the lines and these do a great job of just that.
They are creamy enough to use as a "lipstick" and blend out very well for ombre or softer looks. I need to get a nude in this range!!!