Colloidal Silicon Dioxide

Generally Safe Flow AgentSynthetic

Colloidal Silicon Dioxide is a synthetic flow agent used in dietary supplements. Safety rating: Generally Safe. It is generally considered safe for most people at standard doses. Found in 15 supplements in the GoodSupp database. Colloidal silicon dioxide is a form of silicon dioxide used as a flow agent.

15 Products use this
Generally Safe Safety rating
Flow Agent Category
No Natural origin

Safety Verdict: Generally Safe

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

What is Colloidal Silicon Dioxide?

Colloidal silicon dioxide is a form of silicon dioxide used as a flow agent.

Common Names Colloidal Silicon Dioxide, Silicon Dioxide, Silica
Type Flow Agent
Origin Synthetic / Manufactured
Safety Rating Generally Safe

Why is Colloidal Silicon Dioxide used in supplements?

It prevents clumping and improves powder flow.

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

Should you be concerned about Colloidal Silicon Dioxide?

Generally no. Colloidal Silicon Dioxide 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 Colloidal Silicon Dioxide

These 15 highest-scoring supplements in our database use Colloidal Silicon Dioxide.

Source Naturals N-Acetyl Cysteine, 600 mg
Source Naturals N-Acetyl Cysteine, 600 mg
Product 100 Brand N/A
Source Naturals Free Form L-Ornithine, 667 mg
Source Naturals Free Form L-Ornithine, 667 mg
Product 100 Brand N/A
Source Naturals N-Acetyl Cysteine, 600 mg
Source Naturals N-Acetyl Cysteine, 600 mg
Product 100 Brand N/A
Source Naturals Pycnogenol®, 100 mg
Source Naturals Pycnogenol®, 100 mg
Product 100 Brand N/A
Source Naturals Pantethine, 300 mg
Source Naturals Pantethine, 300 mg
Product 100 Brand N/A
Source Naturals Phosphatidyl Serine 150™, 150 mg
Source Naturals Phosphatidyl Serine 150™, 150 mg
Product 100 Brand N/A
Source Naturals L-Lysine 1,000 mg
Source Naturals L-Lysine 1,000 mg
Product 100 Brand N/A
Wake-Ups Extra Strength Caffeine Tablets 200mg
Wake-Ups Extra Strength Caffeine Tablets 200mg
Product 100 Brand N/A
Wake-Ups 200mg Caffeine Tablets
Wake-Ups 200mg Caffeine Tablets
Product 100 Brand N/A
California Natural Wild Oregano Oil
California Natural Wild Oregano Oil
Product 93 Brand N/A
Source Naturals FOS, 1000 mg
Source Naturals FOS, 1000 mg
Product 93 Brand N/A
VITAMATIC Biotin, 10000 mcg, 365 Vegan Tablets
VITAMATIC Biotin, 10000 mcg, 365 Vegan Tablets
Product 93 Brand N/A
Source Naturals FOS, 1000 mg
Source Naturals FOS, 1000 mg
Product 93 Brand N/A
BetterAlt Testo Pro
BetterAlt Testo Pro
Product 93 Brand N/A
Source Naturals Benfotiamine, 150 mg
Source Naturals Benfotiamine, 150 mg
Product 91 Brand N/A
Related Ingredients
Calcium Silicate Safe Colloidal Silicon Dioxide and Magnesium Stearate Generally Safe Hydrated Silica Generally Safe Magnesium Silicate Generally Safe Magnesium Stearate (Vegetable Source) and Silica Generally Safe Modified Cellulose Gum and Magnesium Stearate Generally Safe Organic Rice Concentrate Generally Safe Organic Rice Extract Blend and Silica Generally Safe
Frequently Asked Questions
Is Colloidal Silicon Dioxide safe in supplements?

Colloidal Silicon Dioxide 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, 15 products contain this ingredient. Consult your healthcare provider if you have specific concerns.

What is Colloidal Silicon Dioxide and why is it in my supplement?

Colloidal silicon dioxide is a form of silicon dioxide used as a flow agent. As a flow agent, it prevents powder ingredients from clumping and ensures uniform filling of capsules during manufacturing. It appears in 15 products in the GoodSupp database.

Is Colloidal Silicon Dioxide natural or synthetic?

Colloidal Silicon Dioxide is synthetically produced, meaning it is manufactured through chemical processes rather than directly extracted from natural sources. Synthetic ingredients are extremely common in supplements and are not inherently less safe than natural alternatives. In many cases, synthetic production allows for higher purity and more consistent quality. The FDA regulates both natural and synthetic supplement ingredients under the same safety standards. GoodSupp rates ingredients based on their actual safety data regardless of whether they're natural or synthetic.

Check Any Supplement's Ingredients

Scan a barcode with GoodSupp to instantly see safety ratings for every ingredient.

Download on App Store
Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records — read our methodology. 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.