Silicone is a compound based on a silicon and oxygen chain, saturated with organic groups based on carbon and hydrogen. Silicones can have different functions and consistencies; they may or may not be suitable for prolonged contact with the skin. Their invention dates back to 1970. The chemical properties of the material are mostly dependent on hydrocarbon chains. In the specific case of anatomical prostheses, the silicone must be hypoallergenic and generally inert, it must also be possible to pigment it with colors that are equally safe for health. Silicones are widely used in prostheses’ manufacture due to the similarity between the material and human skin.