1. Clear conclusion: Counterfeit brands cannot be sold on Douyin because they infringe intellectual property rights and involve legal issues.

2. Explain the reason: Counterfeit brands refer to goods that are similar to well-known brands in appearance and logo. These goods use other brands' trademarks, packaging, product designs, etc. without authorization and occupy a certain market share at a low price in the market. The sale of counterfeit goods may infringe on the goodwill of well-known brands, thereby leading to a decline in brand reputation and having a negative impact on consumers and the market. At the same time, counterfeit brands also infringe intellectual property rights and may involve legal issues.

3. Content extension: Intellectual property protection is an important part of the modern market economy. It involves trademarks, patents, copyrights, trade secrets and other aspects. It is an important part of the legal and regulatory system formulated by the state. In commercial activities, enterprises should follow ethical norms and laws and regulations, and must not infringe or pirate, otherwise they will be subject to legal sanctions, which will affect the reputation and image of the enterprise. Therefore, enterprises should strengthen their awareness of intellectual property protection, respect the intellectual property rights of others, and do a good job in their own intellectual property protection.

4. Specific steps: If you want to sell goods on Douyin, you should follow the following steps. First, determine whether the goods you are selling have relevant intellectual property rights. If so, you must obtain authorization from the right holder; if not, you must ensure that the goods do not infringe on the intellectual property rights of others, otherwise you will face legal issues such as infringement lawsuits. In addition, during the sales process, you should abide by the platform's regulations and relevant laws and regulations, ensure the quality and safety of the goods, and avoid false propaganda and fraud. Finally, you should pay attention to consumer feedback and suggestions, continuously improve the quality of goods and services, and enhance your brand image and market competitiveness.