Silica
Silica (Silicon Dioxide)
An essential trace mineral that supports collagen formation, bone health, and strengthens hair, skin, and nails.
Silicon is the third most abundant trace mineral in the body and plays a crucial role in collagen synthesis and connective tissue health. It's particularly concentrated in bones, skin, hair, and nails. Supplementation may support bone mineral density, improve skin elasticity, and strengthen hair and nails. Bioavailable forms like orthosilicic acid are best absorbed.
Mechanisms of Action
Collagen Cross-linking
Essential for proper collagen structure
Bone Mineralization
Supports calcium deposition in bones
Keratin Support
Strengthens keratin in hair and nails
Recommended Dose
5-10mg elemental silicon daily
Loading: Not required
Optimal Timing
- With meals
Take with food
Best Form
Choline-stabilized orthosilicic acid (ch-OSA)
Alternatives: Orthosilicic acid, Horsetail extract (natural source), Bamboo extract
ch-OSA (BioSil brand) is most bioavailable. Horsetail and bamboo are natural sources but absorption is lower.
Duration
Minimum: 12 weeks
Optimal: 24 weeks
Cycling: Not required
Note: Bioavailability varies greatly by form. Orthosilicic acid (OSA) or choline-stabilized OSA are best absorbed.
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Stronger Hair
Less breakage and improved thickness
Stronger Nails
Less brittleness and breakage
Improved Skin
Better skin elasticity and texture
Bone Support
May support bone mineral density
Consult healthcare provider
Who Should NOT Take This
- Known allergy or hypersensitivity to Silica or related compounds
Drug Interactions
May affect mineral balance; monitor if on long-term diuretic therapy
Silicon may bind to aluminum; separate doses by 2+ hours
Possible Side Effects
Tip: Take with food
Warnings
- Many forms have poor bioavailability
- Choose ch-OSA or orthosilicic acid forms
Top studies from 40+ peer-reviewed papers
Howlett P et al. • Thorax (2024)
“Despite significant heterogeneity, our findings support a reduction in permissible exposure limits from 0.1 mg/m3 to 0.05 mg/m³, particularly among mining populations.”
Key Findings:
- Despite significant heterogeneity, our findings support a reduction in permissible exposure limits from 0.1 mg/m3 to 0.05 mg/m³, particularly among mining populations.
- Further research is needed among non-miners as only two studies were eligible.
- Further research warranted to confirm findings
Su X et al. • BMJ open (2023)
“The incidence of pneumoconiosis in occupational workers was 0.093 and seven factors were found to be associated with the incidence, providing some insight into the prevention of pneumoconiosis.”
Key Findings:
- The pooled incidence of pneumoconiosis was 0.093 (95% CI 0.085 to 0.135).
- The incidence of pneumoconiosis in occupational workers was 0.093 and seven factors were found to be associated with the incidence, providing some insight into the prevention of pneumoconiosis.
- Further research warranted to confirm findings
Zhou Y et al. • Journal of biochemical and molecular toxicology (2023)
“Further analysis showed that among the selected studies, six studies showed a significant correlation between combined exposure to silica and smoking with an increased risk of lung cancer. The data from the present study showed that smoking habits increased the impact of silica exposure on the initiation of lung carcinogenesis in exposed workers.© 2023 Wiley Periodicals LLC.”
Key Findings:
- For each study, the overall odds ratio (OR), relative risk (RR) with 95% confidence intervals (CI), and p values were calculated. An extensive database search resulted in the selection of 20 (case-control and nested case-control studies were selected) out of 527 studies.
- To evaluate the relationship between exposure to silica and developing lung cancer, we performed a meta-analysis using the random-effects model.
- Among the 20 selected studies, 7 studies showed a significant association between silica exposure and an increased risk of lung cancer.
Rey-Brandariz J et al. • Environmental health : a global access science source (2023)
“There is a wide degree of heterogeneity in RCS exposure categories, with most studies observing no significant risk of lung cancer for the lowest exposure categories.”
Key Findings:
- There is a wide degree of heterogeneity in RCS exposure categories, with most studies observing no significant risk of lung cancer for the lowest exposure categories.
- Cut-off points differ between agencies but are nonetheless very similar and do not exceed 0.1mg/m3.
- Further research warranted to confirm findings
Anlimah F et al. • Environmental science and pollution research international (2023)
“This systematic-review examined the effects of Silica.”
Key Findings:
- Although evidence indicates that interventions significantly decrease dust concentration levels, the control measures in place may not effectively prevent workplace overexposure to RCS.
- These interventions can increase the frequency of use of RPE and the adoption of best practice dust control measures.
- Interventions increase knowledge, awareness, and attitudes about RPE usage and generate positive perceptions while reducing misconceptions.
- However, the benefits obtained from an intervention may diminish after its implementation, indicating that the interventions may not continually motivate workers to adopt control measures or use RPE.© 2023.
Study Type Distribution
Goals This Supplement Supports
Related Goals
This information is for educational purposes only and is not intended as medical advice. Always consult a qualified healthcare provider before starting any supplement.