A new phone app shows the effect of drinking alcohol on a person’s facial appearance. The “Drinking Mirror” is designed to make people aware of the physical toll of heavy alcohol consumption.

The app, which is free until March, is available for Android and iPhone users. People can upload or take a photo of themselves, and enter information about their drinking habits, The Washington Post reports. The app shows them how their face might age if they continue to consume alcohol at their current rate, by adding weight gain, dull skin, wrinkles and red cheeks.

The app is part of the Scottish government’s “Drop a Glass Size” campaign, launched by Health Secretary Alex Neil this month. “Evidence shows us that most people who drink alcohol, particularly at home, have no idea of how much they are actually consuming. This campaign will show people how small changes to their drinking habits can have a significant impact on their health and wellbeing,” he said in a news release.