The rapidly growing field of nanotechnology and its future use in cosmetic products holds both enormous potential and potential concern for consumers. Currently, major cosmetic manufacturers have imposed a voluntary ban on the use of nanoparticles in products while they await a ruling from the Food and Drug Administration (FDA) regarding the safety of this technology. However, these manufacturers know that when ingredients in products such as sunscreens and anti-aging products are converted into nano-sized particles, the end product displays unique properties that can benefit the skin in ways that otherwise could not be achieved using larger-sized particles.