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Silica (Silicon Dioxide)
A mineral that's essential for collagen and keratin production — the structural proteins behind strong hair, nails, skin, and connective tissue.
Benefits
- +Supports collagen synthesis — important for skin, hair, nails, and joints
- +May strengthen hair and reduce hair loss
- +Supports nail strength and growth
- +Helps maintain bone density
- +Works synergistically with vitamin C for collagen production
Dosage & Cost
Range100–500 mg/day (as colloidal or food-grade silica)
TimingAnytime, with or without food
Daily cost0.05–0.20
Look for 'colloidal silica' or 'orthosilicic acid' forms — these are the bioavailable, supplement-appropriate forms. Not the same as the industrial form.
Side Effects
- !Generally very safe in food-grade forms
- !Amorphous silica (used in supplements) is safer than crystalline silica (an occupational hazard — not the same thing)
- !Rare: kidney stones in people with pre-existing kidney issues at very high doses
- !Most people tolerate it with zero side effects
Food Sources
- • Oats
- • Bananas
- • Brown rice
- • Beer (surprisingly high in silicon)
- • Potatoes
- • Cucumbers
References & Links
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This page is for informational purposes only. The information here has not been evaluated by the Food and Drug Administration (FDA). No supplement discussed on this page is intended to diagnose, treat, cure, or prevent any disease. Please consult your doctor or a qualified healthcare professional before taking any dietary supplement.