I have been wanting a vitamin C serum for a while now but have been stuck for which one to get so when this Laneige one arrived I thought I would give it a go as I have had good experiences with other Laneige products and the price was really reasonable (especially with the extra discount) I waited a couple of week to write this review because I wanted to give it a good trial and I am thoroughly impressed with the results. My skin looks better than it has in years, it feels incredibly smooth, the spots I had been getting from wearing masks all day have disappeared and the appearance is amazing. I can confidently say I do not need makeup my skin looks so good. I have been using this in the morning every 2-3 days and the By Wishtrend 5% Mandelic Acid in the evening and I honestly think I have found my holy grail combination. The only bad thing I can say about it is that it smells mildly of a combination of oranges and cat food, unpleasant but you only smell in when applying and that isn't enough to loose a star. I also thought it would have a dropper but its actually a tipper bottle so pouring out the right amount takes a steady hand but again, the results are worth it.