There is plenty of reasons. Completely natural ingredients, 100% safety and efficacy guarantee are among the most important ones. Moreover, the enormous interest that CITYLIPS Pro has attracted and positive feedback from satisfied customers are the best recommendation. The product price is also noteworthy. One CITYLIPS Pro is enough for 1-2 months treatment, which makes the cost only cents per day, and when you buy a few CITYLIPS Pro glosses even cheaper!