Silicones (occur in nature as silicates in sand) are polymers with unique properties and have numerous benefits in all aspects of personal care. They are superb emollients providing great slip and can feel like silk on the skin. Silicones also act as skin protectant, conditioner, pearlizer, film-former, moisturizer, thickener, and emulsifier. As silicones are very mild, they are often used to reduce irritation of harsh surfactants. Claims that silicones in any form cause or worsen acne have not been substantiated in published research.