I was suckered into the vitamin C hype with this one! Realistically, I don't think it does anything special, being just a mist that I spritz over my makeup throughout the day. I like it however as a nice pick-me-up when I'm feeling grimy or too hot during the day. Perhaps by the time I finish the entire bottle I might see some brightening effect out of this. Otherwise, it's not a loss for me. This is still a nice mist.