Silicon Dioxide (Silica)

Generally Safe Flow AgentNatural

Silicon Dioxide (Silica) is a naturally derived flow agent used in dietary supplements. Safety rating: Generally Safe. It is generally considered safe for most people at standard doses. Found in 20 supplements in the GoodSupp database. Silicon dioxide, also known as silica, is a compound of silicon and oxygen.

20 Products use this
Generally Safe Safety rating
Flow Agent Category
Yes Natural origin

Safety Verdict: Generally Safe

This ingredient is rated generally safe for use in dietary supplements.

What is Silicon Dioxide (Silica)?

Silicon dioxide, also known as silica, is a compound of silicon and oxygen.

Common Names Silicon Dioxide (Silica), silica
Type Flow Agent
Origin Natural / Plant-derived
Safety Rating Generally Safe

Why is Silicon Dioxide (Silica) used in supplements?

It is used as a flow agent to prevent clumping and improve powder flow.

Role in supplements: Flow agent — prevents powder clumping and ensures uniform filling of capsules.

Should you be concerned about Silicon Dioxide (Silica)?

Generally no. Silicon Dioxide (Silica) is considered safe for most people at typical supplement doses. Some individuals may want to be aware of minor sensitivities.

Low risk. Generally safe for most people in supplement amounts.

Top-rated products containing Silicon Dioxide (Silica)

These 20 highest-scoring supplements in our database use Silicon Dioxide (Silica).

California Gold Nutrition Women's Probiotics with Probiotic Bacteria Blend, Bifidobacterium lactis, Lactobacillus acidophilus, and Lactobacillus rhamnosus, 20 Billion CFU, 60 Veggie Capsules
California Gold Nutrition Women's Probiotics with Probiotic Bacteria Blend, Bifidobacterium lactis, Lactobacillus acidophilus, and Lactobacillus rhamnosus, 20 Billion CFU, 60 Veggie Capsules
Product 100 Brand N/A
California Gold Nutrition L-Theanine, Featuring AlphaWave, 100 mg, 30 Veggie Capsules
California Gold Nutrition L-Theanine, Featuring AlphaWave, 100 mg, 30 Veggie Capsules
Product 100 Brand N/A
California Gold Nutrition Beauty, Menopause Support with Angelica gigas, Cynanchum wilfordii, Phlomis umbrosa and L-Leucine, 30 Veggie Capsules
California Gold Nutrition Beauty, Menopause Support with Angelica gigas, Cynanchum wilfordii, Phlomis umbrosa and L-Leucine, 30 Veggie Capsules
Product 100 Brand N/A
California Gold Nutrition Resveratrol Complex with Grape Seed Extract, Red Wine Extract, and trans-Resveratrol, 60 Veggie Capsules
California Gold Nutrition Resveratrol Complex with Grape Seed Extract, Red Wine Extract, and trans-Resveratrol, 60 Veggie Capsules
Product 100 Brand N/A
California Gold Nutrition L-Glutathione (Reduced), 500 mg, 30 Veggie Capsules
California Gold Nutrition L-Glutathione (Reduced), 500 mg, 30 Veggie Capsules
Product 100 Brand N/A
California Gold Nutrition L-Glutathione (Reduced), 500 mg, 120 Veggie Capsules
California Gold Nutrition L-Glutathione (Reduced), 500 mg, 120 Veggie Capsules
Product 100 Brand N/A
California Gold Nutrition Acidophilus and Bifidus, Probiotic Blend with Lactobacillus acidophilus, Bifidobacterium lactis, and Bifidobacterium longum, 60 Veggie Capsules
California Gold Nutrition Acidophilus and Bifidus, Probiotic Blend with Lactobacillus acidophilus, Bifidobacterium lactis, and Bifidobacterium longum, 60 Veggie Capsules
Product 100 Brand N/A
California Gold Nutrition Magnesium Bisglycinate Chelate, Albion TRAACS®, 240 Veggie Capsules (100 mg per Capsule)
California Gold Nutrition Magnesium Bisglycinate Chelate, Albion TRAACS®, 240 Veggie Capsules (100 mg per Capsule)
Product 100 Brand N/A
California Gold Nutrition Magnesium Bisglycinate Chelate, Albion TRAACS®, 60 Veggie Capsules (100 mg per Capsule)
California Gold Nutrition Magnesium Bisglycinate Chelate, Albion TRAACS®, 60 Veggie Capsules (100 mg per Capsule)
Product 100 Brand N/A
California Gold Nutrition L-Theanine, Featuring AlphaWave®, 100 mg, 60 Veggie Capsules
California Gold Nutrition L-Theanine, Featuring AlphaWave®, 100 mg, 60 Veggie Capsules
Product 100 Brand N/A
California Gold Nutrition L-Theanine, Featuring AlphaWave®, 200 mg, 60 Veggie Capsules
California Gold Nutrition L-Theanine, Featuring AlphaWave®, 200 mg, 60 Veggie Capsules
Product 100 Brand N/A
Super Nutrition Biotin, 5,000 mcg, 120 Veggie Capsules
Super Nutrition Biotin, 5,000 mcg, 120 Veggie Capsules
Product 100 Brand N/A
California Gold Nutrition EuroHerbs™, Panax Ginseng Extract, Euromed Quality, 250 mg, 60 Veggie Capsules
California Gold Nutrition EuroHerbs™, Panax Ginseng Extract, Euromed Quality, 250 mg, 60 Veggie Capsules
Product 100 Brand N/A
California Gold Nutrition Resveratrol Complex with Grape Seed Extract, Red Wine Extract, and trans-Resveratrol, 250 Veggie Capsules
California Gold Nutrition Resveratrol Complex with Grape Seed Extract, Red Wine Extract, and trans-Resveratrol, 250 Veggie Capsules
Product 100 Brand N/A
California Gold Nutrition Sunflower Phosphatidylserine, 100 mg, 120 Veggie Capsules
California Gold Nutrition Sunflower Phosphatidylserine, 100 mg, 120 Veggie Capsules
Product 100 Brand N/A
California Gold Nutrition Beta Glucan 1-3, 1-6, 200 mg, 60 Veggie Capsules
California Gold Nutrition Beta Glucan 1-3, 1-6, 200 mg, 60 Veggie Capsules
Product 100 Brand N/A
California Gold Nutrition S-Acetyl L-Glutathione, 100 mg, 30 Veggie Capsules
California Gold Nutrition S-Acetyl L-Glutathione, 100 mg, 30 Veggie Capsules
Product 100 Brand N/A
California Gold Nutrition S-Acetyl L-Glutathione, 100 mg, 120 Veggie Capsules
California Gold Nutrition S-Acetyl L-Glutathione, 100 mg, 120 Veggie Capsules
Product 100 Brand N/A
California Gold Nutrition Taurine, 1,000 mg, 60 Veggie Capsules
California Gold Nutrition Taurine, 1,000 mg, 60 Veggie Capsules
Product 100 Brand N/A
California Gold Nutrition Saffron Extract with Affron®, 28 mg, 60 Veggie Capsules
California Gold Nutrition Saffron Extract with Affron®, 28 mg, 60 Veggie Capsules
Product 100 Brand N/A
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Frequently Asked Questions
Is Silicon Dioxide (Silica) safe in supplements?

Silicon Dioxide (Silica) is rated generally safe for most people at amounts commonly found in supplements. While the overall safety profile is favorable, some individuals may experience minor sensitivities. In GoodSupp's database, 20 products contain this ingredient. Consult your healthcare provider if you have specific concerns.

What is Silicon Dioxide (Silica) and why is it in my supplement?

Silicon dioxide, also known as silica, is a compound of silicon and oxygen. As a flow agent, it prevents powder ingredients from clumping and ensures uniform filling of capsules during manufacturing. It appears in 20 products in the GoodSupp database.

Is Silicon Dioxide (Silica) natural or synthetic?

Silicon Dioxide (Silica) is naturally derived, meaning it comes from natural sources such as plants, minerals, or animal products rather than being chemically synthesized. Natural-origin ingredients are preferred by many consumers, though it's important to note that 'natural' does not automatically mean 'safer' — safety depends on the specific substance, its purity, and the amount used. The safety rating assigned by GoodSupp is based on the ingredient's actual safety profile, not its origin.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.