I purchased this in the colour "500 the redder the better". I only owned one red lipstick prior to this and I thought I would like to try some more.
First time I used this I put on some lip balm - which was a fail. The colour did not stay on at all. It was patchy. But the next time I used this I used it by itself. It really does have enough hydration in there for you without you needing a lip balm. The colour lasts quite well. I normally would reapply every few hours anyway because with red I find the middle fades before the line. But overall - pretty impressed with this. Hoping to find a few more shades to try out!
I bought two shades when it was on sale and really love the shades. I have dark pigmented lips, but the colour pigments were intense enough for me. Unlike the normal lipstains it did not dry out my lips as well.