I personally liked Vita C, so I wanted to try this one too, so I bought it. Honestly, I didn't have time to use it at first; I was prioritizing other serums specifically for improving skin radiance or treating rough skin, so I didn't use it for a while after I bought it. However, I heard it's great as a booster for moisturizing before applying makeup in the morning, so when I tried it for the first time, I was surprised at how quickly it absorbed and left a refreshing feeling. I regretted not using it sooner. It's not particularly cooling, but it really wakes you up. I'll probably buy it again as part of my morning skincare routine.