The usage limit standards of guanidine carbonate vary in different countries and regions. The following are some specific situations:

China

In cosmetics, the use of guanidine carbonate must comply with the relevant safety technical specifications for cosmetics, and there are strict limitations on its usage concentration, etc., to ensure the safety of products under normal usage conditions. In the field of medicine, when it is used as a drug synthesis intermediate, there are also corresponding quality standards and impurity limit requirements.

United States

For the usage limit of guanidine carbonate in different products, there is its own set of strict regulations. In drug production, the limit requirements for impurity content and other indicators are not exactly the same as those in China; the usage limits in other fields such as cosmetics also vary depending on the product type and usage, and its regulatory focus and evaluation methods are different from those in other countries and regions.

European Union

The European Union has clear regulations on the use of guanidine carbonate in cosmetics. For example, it stipulates the maximum usage concentration in depilatory creams and other products to protect the health and safety of consumers. In the medical field, it also has detailed requirements for the quality control and usage limit of guanidine carbonate as a raw material or intermediate, and its relevant standards and evaluation processes are different from those in China and the United States.

Other Countries and Regions

Some Asian countries such as Japan and South Korea, as well as some countries in Latin America, the Middle East, and Africa, mostly refer to some internationally common standards and specifications for the usage limit standards of guanidine carbonate. However, they will also formulate specific requirements suitable for their own countries or regions according to their own national conditions and industry development situations. For example, the usage limit in certain specific cosmetics or drugs may be different.

"Guanidine Carbonate Worldwide: A Panorama of the Differences in Usage Limit Standards"