I happened to get one of these Fit Glow lip serums from someone who had gotten one as a gift and did not want it (WHAT?!?). That was my intro to this lip serum. I don’t know what it is but my lips are always dry. I rarely wear lipstick but I do like to wear gloss and I absolutely hate when you can see how dry my lips are even with a gloss on. Yuck. This serum is amazing. It completely smoothes my lips out and provides great moisture without being sticky. I think this is meant as a nighttime serum but I use it all day. It gives a perfect amount of shine without being too sticky or too watery. It stays in place nicely and makes my lips look nice and healthy. It’s a little pricey but worth it , in my opinion.