Check a pair

Silicon

Trace mineral essential for connective tissue formation, bone health, and skin integrity, playing important roles in collagen synthesis and tissue strength

Scientific nameSilicon FormulaSi Molecular weight28.09 g/mol CAS7440-21-3
40 absorption score
8 safety / 10
25 USD per month
5 documented interactions

Check it against something

Evidence level A

Silicon with:

Compatibility score 82 out of 100
82 out of 100
Works better together Compatible. Timing differs, so follow each supplement's own window.

Check it against your whole stack →

What it does

mechanism and evidence for each claim

Bone health and mineralization support

Essential for proper bone formation and mineralization

Required for collagen cross-linking and bone matrix formation Evidence B-grade 8-24 weeks

Connective tissue and collagen synthesis

Supports healthy connective tissue formation and collagen production

Essential cofactor for collagen and elastin synthesis enzymes Evidence B-grade 6-16 weeks

Skin health and elasticity

Supports skin health, elasticity, and anti-aging properties

Essential for skin collagen structure and hydration Evidence C-grade 8-20 weeks

Hair and nail strength

Supports healthy hair growth and nail strength

Required for keratin formation and structural protein integrity Evidence C-grade 12-24 weeks

Joint health and cartilage support

Supports joint health and cartilage maintenance

Essential for cartilage matrix formation and joint lubrication Evidence C-grade 8-20 weeks

Others take these for the same thing

Same goal, different mechanism — check any of them against this one

Every pair we checked

12 combinations scored by the engine
Silicon + Caffeine No documented interaction either way No known interaction 70
Silicon + Creatine Monohydrate No documented interaction either way No known interaction 70
Silicon + Whey Protein No documented interaction either way No known interaction 70
Silicon + Lactase No documented interaction either way No known interaction 70
Silicon + Bovine Collagen No documented interaction either way No known interaction 70
Silicon + DHA No documented interaction either way No known interaction 70
Silicon + Turmeric No documented interaction either way No known interaction 70
Silicon + Fish Oil (EPA/DHA) No documented interaction either way No known interaction 70
Silicon + Marine Collagen No documented interaction either way No known interaction 70
Silicon + Calcium Carbonate Enhanced bone health and mineralization Works better together 78
Silicon + Magnesium Oxide Improved bone health and connective tissue support Works better together 78
Silicon + Vitamin D3 Enhanced collagen synthesis and connective tissue formation Works better together 82

Dosage

With meals
Daily5-40mg
Bone health support5-40mg daily
Skin anti aging5-20mg daily
Hair nail health5-20mg daily
Joint support5-40mg daily

Before you take it

VeganYes

When to expect it

First Effects6-12 weeks for initial connective tissue and skin improvements
Peak Benefits16-24 weeks for sustained bone health and structural benefits
Deficiency DevelopmentMay occur with poor diet and aging
Toxicity OnsetVery rare with normal supplementation doses

How to measure it

$100-200
MarkerSerum silicon, bone formation markers, collagen synthesis markers
OptimalAdequate silicon levels, normal bone turnover markers
Deficient belowLow silicon levels, poor collagen markers
FrequencyEvery 6-12 months for bone and connective tissue assessment

What people actually reported to the FDA

CAERS, 1 reports naming it as the suspect

Most reported effects

Dizziness 1
Headache 1
Hypertension 1
Named as the suspect 1 reports of 2 that mention it at all
Serious outcome 100% hospitalisation, emergency room or worse
Hospitalization1
Other Serious or Important Medical Event1
Visited Emergency Room1

Reports are voluntary and unverified — they record what someone experienced while taking something, not what the compound caused. Counts skew towards products people take a lot of, and a serious outcome is more likely to be reported than a mild one, so these are not rates. How we filter them →

What actually reaches you

The label counts the carrier, your body does not
Absorption Moderate 40 of 100 · middle of the range for this compound
Delivered daily 9 mg
Cost per 100 mg delivered $9.26 comparative — uses the absorption score, not a measured percentage

Works better with

3 documented
+
Vitamin C

Enhanced collagen synthesis and connective tissue formation

Both essential for collagen hydroxylation and cross-linking · level A
+
Calcium

Enhanced bone health and mineralization

Silicon improves calcium utilization and bone matrix formation · level B
+
Magnesium

Improved bone health and connective tissue support

Both minerals support bone formation and tissue integrity · level B

What not to take with Silicon

2 documented
!
Aluminum

Aluminum may interfere with silicon absorption and function

Chemical interaction affecting silicon bioavailability · mild significance
!
Excessive Phosphorus

High phosphorus may interfere with silicon utilization

Phosphorus-silicon interaction affecting bone metabolism · mild significance

Medication interactions

Discuss these with a pharmacist before combining
diuretics Minor

May affect silicon excretion and levels

What to do: Monitor if on long-term diuretic therapy

bone-medications Minor

May complement bone-building medication effects

What to do: Generally compatible with bone medications

Available forms

bioavailability compared
Choline-Stabilized Orthosilicic Acid (Highest Bioavailability) 40

Choline-Stabilized Orthosilicic Acid (Highest Bioavailability): Bone health support, Connective tissue benefits, Skin/hair/nail health, Well absorbed

Food sources

before you supplement
Bamboo extract High bioavailable silicon content · 50
Whole grains and cereals 2-10mg per 100g · 20
Bananas 4-5mg per medium banana · 25
Silicon supplements 5-40mg per dose · 40

Too little

deficiency signs
  • Silicon deficiency symptoms:
  • Poor bone formation and increased fracture risk
  • Weak connective tissues and poor wound healing
  • Brittle hair and weak nails
  • Reduced skin elasticity and premature aging
  • Joint problems and cartilage degeneration
  • Cardiovascular tissue weakness

Too much

toxicity signs
  • Silicon excess symptoms (very rare):
  • Respiratory irritation if crystalline silica inhaled
  • Potential kidney stone formation with extreme doses
  • Generally very safe with normal supplementation
  • Amorphous silica forms are considered safe

Who benefits most

bone-health-support

Bone formation and mineralization enhancement

5-40mg daily
skin-anti-aging

Skin health, elasticity, and anti-aging support

5-20mg daily
hair-nail-health

Hair growth and nail strength enhancement

5-20mg daily
joint-connective-tissue

Joint health and connective tissue support

5-40mg daily
aging-adults

Age-related tissue maintenance and structural support

5-20mg daily

Where to buy it

compare forms first

Look for Silicon at 5-40mg per serving. The form that matters here is Choline-Stabilized Orthosilicic Acid (Highest Bioavailability).

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What else affects it

Beyond other supplements
!
Aluminum

Aluminum may interfere with silicon absorption and function

Chemical interaction affecting silicon bioavailability
!
Excessive phosphorus

High phosphorus may interfere with silicon utilization

Phosphorus-silicon interaction affecting bone metabolism

How it works

  • Essential cofactor for prolyl 4-hydroxylase in collagen synthesis
  • Required for proper cross-linking of collagen and elastin fibers
  • Supports bone matrix formation and mineralization processes
  • Maintains structural integrity of connective tissues
  • Important for glycosaminoglycan synthesis in cartilage and skin
  • Supports cellular hydration and tissue elasticity

Key findings

what the evidence supports
  • Good evidence for bone health and connective tissue support
  • Moderate research on skin, hair, and nail benefits
  • Essential for collagen synthesis and tissue integrity
  • Generally safe with good tolerability profile

Sources: NIH Examine.com · data reviewed 2026-08-02

Compiled by Denis, who maintains this database and holds no medical qualification — every figure here is sourced or derived, never asserted. How we calculate it →

Common questions

What are the benefits of Silicon?

Documented effects: Bone health and mineralization support; Connective tissue and collagen synthesis; Skin health and elasticity; Hair and nail strength. Essential for proper bone formation and mineralization

How much Silicon should you take per day?

The common daily range is 5-40mg. By goal — bone health support: 5-40mg daily; skin anti aging: 5-20mg daily; hair nail health: 5-20mg daily; joint support: 5-40mg daily.

When is the best time to take Silicon?

With meals. First effects are typically reported within 6-12 weeks for initial connective tissue and skin improvements.

What are the side effects of Silicon?

At excessive doses: Silicon excess symptoms (very rare):, Respiratory irritation if crystalline silica inhaled, Potential kidney stone formation with extreme doses, Generally very safe with normal supplementation, Amorphous silica forms are considered safe. Safety rating at normal doses is 8 out of 10.

What should you not take with Silicon?

Separate it from Aluminum, Excessive Phosphorus by two to four hours. Aluminum may interfere with silicon absorption and function

Does Silicon interact with medications?

Documented interactions with diuretics, bone-medications. Discuss these with a pharmacist before combining.

How do you know if you need Silicon?

The marker is Serum silicon, bone formation markers, collagen synthesis markers, optimal range Adequate silicon levels, normal bone turnover markers. Common deficiency signs: Silicon deficiency symptoms:, Poor bone formation and increased fracture risk, Weak connective tissues and poor wound healing, Brittle hair and weak nails.

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