Ingredient Olaplex No. 3 banned in the EU?? 👀 One of the most popular hair products du moment has recently come into contradiction... 😱 The “old” version of Olaplex No. 3 is said to contain an ingredient that may cause fertility problems. This specific substance 'butylphenyl methylpropional' (also known as lilial) can be found in several cosmetic products and is banned in Europe from March 2022. Do you have to tip your old Olaplex bottle into the trash can now, or is it all easy? We spot a number of articles that explain exactly how it is now and what steps the well-known hair brand has taken.