When I was in college the only professional chemistry group that I knew about was the American Chemical Society. It’s an old organization and I was a proud, card-carrying member for over >15 years. Eventually, I abandonded it because I just never got any benefit from the $150 yearly membership fees. I still love their website and the content they provide but have yet to have a reason to renew.
Anyway, while the ACS focuses mainly on organic synthesis and analytical chemistry, they do occasionally conduct courses that could be helpful to cosmetic chemists.
This one about Dispersions in Liquids is one such course. The topcis covered include surfactants, nanoparticle technology, emulsion technology, polymer stablization and more. Could be just the thing you are looking for to beef up your cosmetic formulation prowess.
The course is in Chicago on October 2 & 3, 2012. It is also being held in Houston, TX on December 2 & 3, 2012.