According to "Advertising Law of People's Republic of China (PRC)" and "Anti-unfair Competition Law of People's Republic of China (PRC)", businesses are required to abide by relevant regulations when advertising, and not to publish false or misleading advertisements, or to make false propaganda or mislead consumers. If a merchant sells titanium jewelry in Tik Tok without false propaganda or misleading consumers, it is not illegal.

At the same time, merchants also need to ensure that the goods they sell meet the relevant quality standards and safety requirements, so as to avoid disputes and complaints caused by commodity quality problems.