Crescina App is a simple and intuitive interface that helps the consumer choose the proper Crescina treatment in vials that better suits his needs in terms of thinning and / or hair loss conditions. By interacting with the camera, the user can determine his own thinning stage, and get a suggestion for the best dosage of Crescina Re-Growth to apply. Moreover, the App has a useful reminder service that helps the consumer follow the correct application scheme throughout the whole treatment, by reminding him the time in which to proceed with the application of Crescina vial. In addition, the App provides the user with the most important information about Crescina and some useful answers to the most frequently asked questions.