The market positioning is different.

The positioning of Zhencaotang hair dye cream is to distinguish it from other hair dye creams on the market. They claim that they use new plant hair dye products and are not allergic. So it is only sold in pharmacies.

Zhencaotang is a new generation of herbal hair dye developed by scientific researchers from Beijing Jiuzhou Yihua Cosmetics Factory after several years of scientific and technological research. Zhencaotang is available in brown (Special Character for National Makeup G20100676), natural black (Special Character for National Makeup G20100679), brown-black (Special Character for National Makeup G20100688), natural black (Special Character for National Makeup G20100675), maroon red (Special Character for National Makeup G20100681), and grape purple (G20100671) Chestnut Brown (G20100685) Chestnut Red (G20100686) Princess Diana Gold (G20100690) The above batch numbers can be checked on the website of the State Food and Drug Administration.