Silica
Best-in-class: Silica
A mineral essential for collagen cross-linking and connective tissue — supports hair strength, nail growth, skin and bone.
How Silica actually works
Orthosilicic acid is the bioavailable form, and silicon is required for the cross-linking of collagen type I and for early bone matrix mineralisation — deficiency produces defective connective tissue in animal models. Bamboo and horsetail supply it as silica that must be converted, which is inefficient; choline-stabilised orthosilicic acid is the pre-formed version.
Silica quick facts
| Suggested dose | As directed (choline-stabilized orthosilicic acid or bamboo extract). |
| How often | Daily |
| Who it's for | Hair, skin, nail and bone/connective-tissue support. |
✅ Clinically validated
- RCTs (bioavailable silicon) show improved hair strength, nail quality and skin elasticity.
- Supports collagen formation and bone matrix.
📊 Correlative data
- Silicon status tracks with connective-tissue and bone quality.
🧪 Theoretical / extrapolated benefits
- Orthosilicic acid is predicted to act as a cofactor in collagen synthesis and to influence bone mineralisation — so the prediction is structural support rather than any direct effect on hair or nail growth rate.
- Bioavailability differs enormously between forms: choline-stabilised orthosilicic acid is absorbed far better than bulk silicon dioxide, which predicts that most cheap silica products do very little.
These tiers tell you how much human evidence exists — not how well something works. This is the research space, and most of what’s in here is new rather than disproven. Something sitting at “theoretical” usually means nobody has funded the trial, not that the trial was run and failed.
The trap runs the other way too: something can be clinically validated and still do very little for you specifically. A statistically significant result in a study population is not a promise about your body.
- ✅ Clinically validated — human randomised trials or meta-analyses support it. The strongest footing available.
- 📊 Correlative — observational or epidemiological data. Suggestive, and genuinely useful for direction, but it cannot establish cause.
- 🧪 Theoretical / mechanistic — the mechanism is understood and often demonstrated in cells or animals, and the human trial doesn’t exist yet. Unproven is not the same as ineffective. Plenty of what’s standard practice today sat here five years ago.
✗ is a safety flag, not a grade. Where you see it, the concern is harm — not a disappointing trial. A compound tested for one purpose and found not to help there can still be worth studying somewhere else, so a negative result never gets rendered as a cross. It sits alongside the tier, because something can be both well-studied and genuinely risky.
My job is to tell you which one you’re looking at, and let you make the call. Grading something low isn’t me dismissing it — it’s me refusing to oversell it. This is the research space, and being able to reason forward from a mechanism matters as much as waiting for the trial.
A genuine structural cofactor with a real mechanism, and thin human repletion data. Small trials show improved skin, hair and nail quality. The form matters enormously for absorption — most cheap silica supplements deliver very little bioavailable silicon. Horsetail contains thiaminase, which degrades vitamin B1, so long-term use of that source is not ideal.
Silica — safety & side effects
- Well tolerated; GI upset at higher doses.
- Avoid with kidney disease — silicon is cleared renally and accumulates with impaired function.
- Horsetail-derived silica carries the thiaminase caution on that page. No significant drug interactions otherwise.
Not medical advice. If you take prescription medication or have a diagnosed condition, check this against it with a pharmacist or doctor — pharmacists are underused and free.
Where to get Silica
Find Silica on iHerb →Get the complete breakdown for Silica — inside the Academy alongside the full interactive Vault.
Unlock in the Academy — $10/mo →- When to take it, and what to take it with
- Which form actually absorbs
- Who it's worth it for
- Best-in-class brand pick
- Coach Cam's stacks and notes
Get the complete breakdown for Silica — inside the Academy alongside the full interactive Vault.
Unlock in the Academy — $10/mo →Bloodwork to run alongside Silica
Run these before you start, and again after 8–12 weeks. A baseline you didn’t take is one you can never go back for.
| Marker | What it’s watching for |
|---|---|
| Ferritin | Below 50 and hair and skin repair suffer, whatever else you take |
| Vitamin D (25-Hydroxy) | Skin, bone and connective tissue all depend on it |
| TSH (Thyroid-Stimulating Hormone) | Thyroid disease shows in hair, skin and nails first |
| Zinc, Plasma | Deficiency causes poor wound healing and hair shedding |
The The Basics — Start Here panel covers these in one order — 4 markers, $32.40 with the discount applied.
Check results you already have → · All 102 markers A–Z
Silica — frequently asked questions
What is Silica?
A mineral essential for collagen cross-linking and connective tissue — supports hair strength, nail growth, skin and bone.
What is the suggested dose of Silica?
As directed (choline-stabilized orthosilicic acid or bamboo extract). This is a general reference for education only — statements have not been evaluated by the FDA and this is not medical advice.
Where can I find Silica dosing and the full breakdown?
The suggested dose and the full evidence — clinical, correlative and theoretical — are on this page. What's inside the Academy is when to take it, which form actually absorbs, the brand worth buying and Coach Cam's stacks.
Where can I buy Silica?
Coach Cam sources Silica from vetted, top-rated brands on iHerb — use the buy link on this page.
Build your foundation with Coach Cam
The full Supplement Vault — 350 products across 14 categories with clinical, correlative & theoretical evidence, plus my Thorne partner links — lives inside the Academy alongside 237 peptides.
Join the Academy — $10/mo →What Silica is used for
Silica appears under 3 goals in the Vault’s goal router, grouped by the mechanism it works through rather than by how much trial evidence exists. Each link opens that pathway in full, with the alternatives beside it and the bloodwork that tests it.