In case you didn't know, Justin Bieber and his wife, Hailey, have a "series" of their own on Facebook, where they post videos from daily life and marriage. Now that you know, we keep talking about Justin Bieber?s acne.

During the last video, Justin told about the problems with acne after the twenties and said that no matter how hard he tried to treat them, nothing worked. Justin showed that he has acne during periods when he is stressed, but they leave quickly. Unlike stress acne, what is known as post-adolescence acne lasts longer and tends not to improve quickly, despite treatment.

"I wear more and more hats, but that makes them worse," Bieber said. As it happens to all of us Justin showed that acne comes out just when there are any important events like Grammy or will go to Ellen DeGeneres.

"The hardest part is self-confidence because there are so many filters on Instagram. People look like they have perfect skin and you start thinking that this is the reality. But actually many people have skin problems. You are not alone. We are all the same, ?he said.

Justin's skin is specially cared for by Hailey and for more details you can follow the video at the end of the article.

As we said, acne in adults is otherwise known as post-adolescent acne and is a rash that usually appears after the age of 25. According to Harvard Medical School, these acne are caused by almost the same factors as acne in adolescence. Factors that directly contribute to their appearance, in addition to stressful situations and various emotional states, are the excessive production of skin fat, blockage of pores, bacteria and inflammation.