High-purity nano zinc oxide used in cosmetics must meet strict requirements for purity, particle size, safety, and functionality to ensure product safety and effectiveness. Daxinong High-Purity Zinc Oxide DXN-ZY06, 200-300nm cosmetic zinc oxide, 99.9% purity, can provide relevant Annex 13.14 cosmetic notification code. Strict control of heavy metal content such as lead, mercury, and arsenic, complying with cosmetic safety standards (such as EU EC No 1223/2009 or China's "Cosmetics Safety Technical Specification"). At the same time, it must possess good dispersibility.

Safety Requirements
1. Biocompatibility: Must pass skin irritation tests, phototoxicity tests, etc., to ensure no skin irritation or sensitization.
2. Inhalation Safety: If the product is in spray or powder form, the inhalation risk of nanoparticles must be assessed to avoid respiratory harm.
3. Photostability: Must remain stable under UV exposure to avoid decomposition and the production of harmful substances.
Functional Requirements
UV Protection: Must provide full-spectrum UVA and UVB protection, with SPF and PA levels meeting product claims.
Antibacterial Properties: Some nano zinc oxide products must possess antibacterial functionality, verified through antibacterial testing.
Transparency: Must remain transparent or semi-transparent in formulations to avoid affecting product appearance.
Regulations and Standards
Compliance: Must comply with cosmetic regulations in the respective country or region, such as EU EC No 1223/2009, China's "Cosmetics Safety Technical Specification," US FDA regulations, etc.