Are dyes and pigments suppliers safe?

The safety of dyes and pigments suppliers mainly depends on their production process and quality control. ‌
Safety of dye suppliers
Carcinogens and harmful chemicals: Some unregulated small workshops may use dyes containing carcinogens in order to reduce costs. These dyes not only have poor color fastness and are prone to fading, but may also contain various toxic chemical components.
Quality testing and certification: Dyes produced by legitimate manufacturers undergo strict testing to ensure they are harmless. Consumers can ensure the safety of dyes by reviewing their testing reports.
Safety of pigment suppliers
Heavy metal and microbial contamination: Some pigment products may contain excessive heavy metals (such as mercury, lead, arsenic, etc.) or severe microbial contamination. For example, some hair dye powders have been found to have arsenic levels exceeding the standard, and the total number of bacterial colonies and fungi/yeasts has severely exceeded the standard.
Legitimate channels and testing reports: Choosing legitimate channels and suppliers, and requiring dye testing reports to be provided, is key to ensuring safety. Dyes without testing reports may contain harmful ingredients that pose a threat to skin health.