People have said this is good for various things, ranging from wellbeing to nails, skin, hair, joints, and teeth.
I have seen separate doses. THere doesn't seem to be a suggestion for how much to take.
Alta Silica with horsetail extract: 500mg
http://www.swansonvi...500-mg-120-tabs
Swanson Bamboo extract: 300mg
http://www.swansonvi...-mg-60-veg-caps
Swanson Horsetail: 500mg
http://www.swansonvi...-500-mg-90-caps
Body essential silica with calcium and vitamin D2: 224mg
http://www.swansonvi...aps-90-veg-caps
Lumina health silica: 25mg
http://www.swansonvi...z-118-ml-liquid
Some things said that bamboo silica is better than horsetail. There appears to be strong ideas about this.
Various things said horsetail is 7% silica and bamboo is 70%. In that case, is 500mg of horsetail 35mg of silica and 500mg of bamboo 350mg of silica?
People suggest silica may be beneficial for tinnitus.