Fawny strides to an easy win. But look out for phoney silica, which is non-organic , or non-bio-available SiO2 - silicon dioxide.
homeopathic SiO2 ( which is in all water ) will do fine, that is if running over
rocks for millions of years dissolves silica. You'll get plenty when U go to the beach. Other that that, trust your makeup kit with its dimethicone - plenty of organic silicon there, hard to assimilate - but who knows ? SiO2 ?
Silicon Dioxide ...
When you see this on the label , its useless in the body, but great for
glassmaking - just add it to the furnace. It will not dissolve except in hydroflouric acid, so don't get conned with your $ ...