Home Cosmetic Science Talk Formulating Why use 2 grades of inorganic sunscreens?

  • Bobzchemist

    February 3, 2014 at 1:02 pm

    That’s…interesting - I’ve never seen that on an ingredient list before. Then again, putting “micronized Zinc Oxide” on an ingredient label would be (technically) illegal in the US. 

  • pma

    February 3, 2014 at 2:44 pm

    Bobzchemist: in Japan, if a product has any whitening ingredient approved by the Japanese government it’s called a quasi-drug, not a cosmetic. And if the sunscreen is a quasi-drug (bacause contains the whitening quasi-drug), you must show in the ingredients list if the inorganic actives are micronized, regular or both. 

    Japanese regulations for cosmetics are very different from the rest of the world… 
  • mikebavington

    February 4, 2014 at 1:27 pm

    Good thing they didnt have regulators around when Geishas became prevalent.

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