Silica and Magnesium Stearate

Generally Safe Flow AgentSynthetic

Silica and Magnesium Stearate 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 20 supplements in the GoodSupp database. A combination of silica and magnesium stearate, used as a flow agent.

20 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 Silica and Magnesium Stearate?

A combination of silica and magnesium stearate, used as a flow agent.

Common Names Silica and Magnesium Stearate
Type Flow Agent
Origin Synthetic / Manufactured
Safety Rating Generally Safe

Why is Silica and Magnesium Stearate used in supplements?

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

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

Should you be concerned about Silica and Magnesium Stearate?

Generally no. Silica and Magnesium Stearate 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 Silica and Magnesium Stearate

These 20 highest-scoring supplements in our database use Silica and Magnesium Stearate.

Planetary Herbals KSM-66® Ashwagandha Root Extract, 120 Vegetarian Capsules (300 mg per Capsule)
Planetary Herbals KSM-66® Ashwagandha Root Extract, 120 Vegetarian Capsules (300 mg per Capsule)
Product 100 Brand N/A
Planetary Herbals KSM-66® Ashwagandha Root Extract, 60 Vegetarian Capsules (300 mg per Capsule)
Planetary Herbals KSM-66® Ashwagandha Root Extract, 60 Vegetarian Capsules (300 mg per Capsule)
Product 100 Brand N/A
KAL Calcium Citrate D-3, 90 Tablets
KAL Calcium Citrate D-3, 90 Tablets
Product 100 Brand N/A
KAL Calcium Citrate 1000, 180 Tablets (333 mg per Tablet)
KAL Calcium Citrate 1000, 180 Tablets (333 mg per Tablet)
Product 100 Brand N/A
KAL Calcium Citrate 1000, 90 Tablets (333 mg per Tablet)
KAL Calcium Citrate 1000, 90 Tablets (333 mg per Tablet)
Product 100 Brand N/A
KAL Calcium Citrate D-3, 180 Tablets
KAL Calcium Citrate D-3, 180 Tablets
Product 100 Brand N/A
Nature's Life Protecting Zinc Plus Copper, 250 Capsules
Nature's Life Protecting Zinc Plus Copper, 250 Capsules
Product 100 Brand N/A
Nature's Life Protecting Zinc, 50 Capsules
Nature's Life Protecting Zinc, 50 Capsules
Product 100 Brand N/A
Solaray Biotin, 5,000 mcg, 60 VegCaps
Solaray Biotin, 5,000 mcg, 60 VegCaps
Product 100 Brand N/A
KAL B-2, 100 mg, 60 Tablets
KAL B-2, 100 mg, 60 Tablets
Product 100 Brand N/A
Nature's Life Zinc, 100 Capsules
Nature's Life Zinc, 100 Capsules
Product 100 Brand N/A
KAL Molybdenum Amino Acid Chelate, 250 mcg, 100 Tablets
KAL Molybdenum Amino Acid Chelate, 250 mcg, 100 Tablets
Product 100 Brand N/A
Nature's Life DGL Licorice Chewable, 100 Tablets
Nature's Life DGL Licorice Chewable, 100 Tablets
Product 100 Brand N/A
Viteyes Areds 2 Based Formula Zinc Free, 60 Capsules
Viteyes Areds 2 Based Formula Zinc Free, 60 Capsules
Product 95 Brand N/A
KAL Tri-Zinc 50™, 90 Tablets (50 mg per Tablet)
KAL Tri-Zinc 50™, 90 Tablets (50 mg per Tablet)
Product 93 Brand N/A
KAL Amino Acid Complex 1000, 100 Tablets
KAL Amino Acid Complex 1000, 100 Tablets
Product 93 Brand N/A
NaturesPlus DHEA-25 with Bioperine®, 60 Capsules
NaturesPlus DHEA-25 with Bioperine®, 60 Capsules
Product 93 Brand N/A
LifeTime Vitamins Resveratrol Acai & Co-Q10, 60 Vegetarian Capsules
LifeTime Vitamins Resveratrol Acai & Co-Q10, 60 Vegetarian Capsules
Product 91 Brand N/A
Solaray Methyl B-Complex 50, 60 VegCaps
Solaray Methyl B-Complex 50, 60 VegCaps
Product 90 Brand N/A
Source Naturals Lutein with FloraGLO®, 20 mg, 60 Capsules
Source Naturals Lutein with FloraGLO®, 20 mg, 60 Capsules
Product 89 Brand N/A
Related Ingredients
Calcium Silicate Safe Colloidal Silicon Dioxide Generally 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
Frequently Asked Questions
Is Silica and Magnesium Stearate safe in supplements?

Silica and Magnesium Stearate 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 Silica and Magnesium Stearate and why is it in my supplement?

A combination of silica and magnesium stearate, 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 20 products in the GoodSupp database.

Is Silica and Magnesium Stearate natural or synthetic?

Silica and Magnesium Stearate 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.

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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.