Tea Tree Oil Is Not All Equal: Chemist Warns on Adulteration
Cosmetic chemist Valerie George warns that adulterated tea tree oil can pass ISO 4730 testing, and urges brands to demand enantiomeric data from suppliers.
Topic: formulation
Probiotic Cosmetics Are Not Adulterated — But Proof Is on Brands
Probiotic cosmetics with microbes above FDA and ISO limits are not automatically adulterated, but brands must prove the organisms were deliberately added and harmless across shelf…