There are several forms of the chemical in breast implants that can cause a problem in the human organism. Silicon (Si) is the basic element and probably causes immune system changes. Silica or SiO2 is the form it is mined from the earth. Silicone gel is a synthetic material containing 38% silicon. The silica is 45% silicon. There is slow leakage (“bleeding”) of the silicone gel from the implants through the semi-permeable membrane envelope and also into and through the capsule that surrounds the implants. This is picked up by the microphages (scavenger cells) of our immune system and is broken down inside these cells which travel all over the body. The gel breaks down inside these cells, which travel all over the body. The gel breaks down into Silica and Silicon which causes an immune system dysregulation. Thus, there are antibodies produced against the silicon and also against the silicon and protein complex (organ systems) so that you get autoimmune illness. read more