Regarding the preservative DMDMH, which countries ban i...
Currently, Japan bans all formaldehyde-controlled preservatives and fungicides, including formaldehyde, Genma series, DMDMH series, etc. Casson is not allowed to be used in Japan. DMDMH is allowed for use in the United States, European Union and China. From a performance perspective, the DMDMH serie...