Stearic Acid and Silica

Generally Safe LubricantSynthetic

Stearic Acid and Silica is a synthetic lubricant 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. Stearic acid is a fatty acid, and silica is silicon dioxide.

20 Products use this
Generally Safe Safety rating
Lubricant Category
No Natural origin

Safety Verdict: Generally Safe

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

What is Stearic Acid and Silica?

Stearic acid is a fatty acid, and silica is silicon dioxide.

Common Names Stearic Acid and Silica
Type Lubricant
Origin Synthetic / Manufactured
Safety Rating Generally Safe

Why is Stearic Acid and Silica used in supplements?

They are used as lubricants and flow agents to improve manufacturing.

Role in supplements: Lubricant — prevents ingredients from sticking to manufacturing equipment during tableting and encapsulation.

Should you be concerned about Stearic Acid and Silica?

Generally no. Stearic Acid and 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 Stearic Acid and Silica

These 20 highest-scoring supplements in our database use Stearic Acid and Silica.

NaturesPlus Pro, NAC 1200, 60 Capsules (600 mg per Capsule)
NaturesPlus Pro, NAC 1200, 60 Capsules (600 mg per Capsule)
Product 100 Brand N/A
KAL L-Glutathione SR, 500 mg, 30 VegCaps
KAL L-Glutathione SR, 500 mg, 30 VegCaps
Product 100 Brand N/A
KAL Biotin, Sustained Release, 5,000 mcg, 60 Tablets
KAL Biotin, Sustained Release, 5,000 mcg, 60 Tablets
Product 100 Brand N/A
KAL Selenium, 100 mcg, 100 Tablets
KAL Selenium, 100 mcg, 100 Tablets
Product 100 Brand N/A
Nature's Life Lycopene, 30 mg, 30 Tablets
Nature's Life Lycopene, 30 mg, 30 Tablets
Product 100 Brand N/A
Nature's Life Renewing Magnesium Malate, 250 Tablets (200 mg per Tablet)
Nature's Life Renewing Magnesium Malate, 250 Tablets (200 mg per Tablet)
Product 93 Brand N/A
Nature's Life Niacinamide, 500 mg, 100 Vegetarian Tablets
Nature's Life Niacinamide, 500 mg, 100 Vegetarian Tablets
Product 93 Brand N/A
KAL Methyl B-12, Sustained Release, 5,000 mcg, 60 Tablets
KAL Methyl B-12, Sustained Release, 5,000 mcg, 60 Tablets
Product 93 Brand N/A
KAL Malic Acid with Magnesium, 120 Tablets
KAL Malic Acid with Magnesium, 120 Tablets
Product 88 Brand N/A
KAL Quercetin, 1,000 mg, 60 Tablets
KAL Quercetin, 1,000 mg, 60 Tablets
Product 87 Brand N/A
Zhou Nutrition Calcium Greens, 120 Tablets
Zhou Nutrition Calcium Greens, 120 Tablets
Product 87 Brand N/A
KAL NADH, 5 mg, 30 Tablets
KAL NADH, 5 mg, 30 Tablets
Product 87 Brand N/A
NaturesPlus Super B-50, 60 Capsules
NaturesPlus Super B-50, 60 Capsules
Product 85 Brand N/A
KAL Kids DinoDophilus™Probiotic Healthy Gut Support Black Cherry, 60 Chewables
KAL Kids DinoDophilus™Probiotic Healthy Gut Support Black Cherry, 60 Chewables
Product 83 Brand N/A
Solaray Multidophilus Probiotic, 3 billion CFU, 180 VegCaps
Solaray Multidophilus Probiotic, 3 billion CFU, 180 VegCaps
Product 83 Brand N/A
Solaray Multidophilus, 3 billion CFU, 100 VegCaps
Solaray Multidophilus, 3 billion CFU, 100 VegCaps
Product 83 Brand N/A
NaturesPlus Pro Dim 200, 60 Capsules
NaturesPlus Pro Dim 200, 60 Capsules
Product 79 Brand N/A
NaturesPlus Acti-Zyme, 180 Vegan Capsules
NaturesPlus Acti-Zyme, 180 Vegan Capsules
Product 79 Brand N/A
Nature's Life Lipotropic Complex, 180 Tablets
Nature's Life Lipotropic Complex, 180 Tablets
Product 77 Brand N/A
Nature's Life Lipotropic Complex, 90 Tablets
Nature's Life Lipotropic Complex, 90 Tablets
Product 77 Brand N/A
Related Ingredients
Calcium Palmitate Generally Safe Calcium Stearate Generally Safe Cellulose and Magnesium Stearate Generally Safe Glyceryl Behenate Safe Magnesium Stearate Safe Magnesium Stearate (Plant Based) Generally Safe Magnesium Stearate (Veg.) Generally Safe Magnesium Stearate (Vegetable Grade) Generally Safe
Frequently Asked Questions
Is Stearic Acid and Silica safe in supplements?

Stearic Acid and 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 Stearic Acid and Silica and why is it in my supplement?

Stearic acid is a fatty acid, and silica is silicon dioxide. As a lubricant, it prevents ingredients from sticking to manufacturing equipment during the tableting and encapsulation process, ensuring consistent production. It appears in 20 products in the GoodSupp database.

Is Stearic Acid and Silica natural or synthetic?

Stearic Acid and Silica 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.