I've done a little reading on Nanotechnology to find how it really fits into the work we do in the cosmetics and personal care industry. Not much is being written on this subject in relation to Cosmetics but nanotechnology is being plastered all over the Internet. What is Nanotechnology? I was able to get this basic definition off the internet and just by itself one cannot make any connection with it and the work being done in cosmetics. It states that "nanotechnology is the engineering of functional systems at the molecular scale". This definition seems to cover both current work and concepts for the future that will be more advanced. It also refers to nanotechnology as "the projected ability to construct items from the bottom up, using techniques and tools being developed today to make complete, high performance products" which have a value and function in the marketplace.When we make an SPF product using titanium dioxide, zinc oxide or iron oxides, we are using nano-sized particles in order to get the optimum UV absorption without getting the opacity that these ingredients usually provide.