I've been using HABA White Lady as an introductory beauty serum for over 10 years, but when I tried it one winter I was surprised at how firm my skin was! I think it improves the firmness of the skin. After that I used Lift Up Serum even in the summer, but in the past few years I've had frequent breakouts, so I went back to using White Lady in the winter. Things have calmed down over the past year, so I bought it again for the first time in a while for this fall and winter.