Why is Nicomenthyl not registered in China as a cosmetic ingredient?

The only reason is that, to this date, the Chinese legislation mandatorily requires animal testing for all new cosmetic ingredients. This is totally contrary to legislations of nearly all western countries and, particularly, in violation of European legislation on cosmetics, which clearly forbids such tests (Regulation (EC) n.1223/2009 of 30/11/2009, art. 18, Animal testing).
Multichem R&D believes animal testing to be uselessly and needlessly cruel. Nicomenthyl has never been tested and will never be tested on animals.
All testing regulations and requirements by European jurisdiction have been met to ensure Nicomenthyl complete safety and efficacy.