There is no standard time. Some people have to study for about half a year, while others have to study for about two years. Because if you go to a beauty salon to study, you are just an apprentice at first, and you just don't know a little basic knowledge. You have to rely on your master to teach you. It depends on whether your master is good or not. Some of you have been working for half a year and are still handyman. If you want to learn beauty, it is recommended to go to a professional training school, and learn two from the basics.