What’s the difference between EMA and MMA?
First, only three atoms distinguish the difference between EMA and MMA. However, this small chemical difference makes EMA much safer. An example is the difference between poisonous wood alcohol (methanol) and beverage alcohol (ethanol). Again the difference between the two molecules is only three atoms. Yet wood alcohol is deadly if consumed. Beverage alcohol is considered safe (if not used in excess!). Another difference, and one that is most relative to consumers, is PRICE. MMA is much less expensive (about 1/16th the cost!), compared to EMA – this may explain the difference in prices at different salons. Is EMA really safe? You will be happy to know that ethyl methacrylate is one of the most studied monomers on Earth. There is a huge amount of scientific literature that backs up the safety of this important substance. It is used in everything from household plastics to medical devices that are implanted in the body. Recently, the prestigious Cosmetic Ingredient Review Panel (CIR) re