A: According to Rules for Registration and Notification Dossiers of Cosmetics, Article 35, for cosmetics containing two or more independent formulas which must be used together or whose containers can not be splited,

the formulas shall be filled in separately and shall be applied for registration or filing as one product.

Hair dye products contains two agents which must be used together, the formulas shall be filled in separately and shall be applied for registration or filing as one product.