As for what you said, she only promoted the advertisements made by the merchants themselves. For more information, please refer to the following reports:

At the CCTV "3 15" party in 2007, the false advertisement of "Hohhot Pharmaceutical Expo" was exposed, which shocked TV viewers. The author thought that the exhibitors of this drug fair would be restrained, but it had not started before the meeting. On September 7th, the author walked around Zhaojun Hotel and Bayantala Hotel and found a typical false advertisement. This is a poster advertisement posted on the windows of two hotels across the street. The name of this medicine is "Jiayao Jiegu Pill", and the stars who speak for it are "Liu Liu, a famous CCTV host", a famous singer Liu Huan and a famous actor Fan Wei. The author is puzzled. First, from the name analysis, it is obvious that "Jiegu Pill" is a trade name and "Good Medicine" is a trade name. However, according to the Trademark Law, the word "medicine" cannot be embodied in the trademarks of medicines. From a legal point of view, this "good medicine" cannot be approved, so where does this "good medicine" come from? The author carefully analyzed the medicine box on the poster and found that "Good Medicine" is the registered corporate logo of the manufacturer Jiamusi Traditional Chinese Medicine Co., Ltd., but the agent of this medicine stole the concept and rigidly combined two terms that were not close at all, making patients mistakenly think that "Jiegu Pill" is the best medicine. Secondly, the author knows something about the cultural entertainment circle, knowing that the official staff of CCTV are absolutely not allowed to accept commercial advertisements, so this Liu Liu obviously can't be the "famous host of CCTV". In addition, Liu Huan is a very self-disciplined person. He accepts commercial advertisements in the entertainment circle, but generally does not accept advertisements from big brands, not to mention such extremely sensitive drug advertisements. It can be concluded that this is a celebrity endorsement advertisement with obvious fraud.