Magnesium Stearate and Silica

Generally Safe LubricantSynthetic

Magnesium Stearate 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. A combination of magnesium stearate (a lubricant) and silica (a flow agent).

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

Safety Verdict: Generally Safe

Some concerns exist regarding potential immune suppression with magnesium stearate.

What is Magnesium Stearate and Silica?

A combination of magnesium stearate (a lubricant) and silica (a flow agent).

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

Why is Magnesium Stearate and Silica used in supplements?

It is used to improve powder flow and prevent sticking during manufacturing.

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

Should you be concerned about Magnesium Stearate and Silica?

Generally no. Magnesium Stearate and Silica is considered safe for most people at typical supplement doses. Some individuals may want to be aware of minor sensitivities.

Some concerns exist regarding potential immune suppression with magnesium stearate.

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

Top-rated products containing Magnesium Stearate and Silica

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

KAL Benfotiamine+, 150 mg, 60 VegCaps
KAL Benfotiamine+, 150 mg, 60 VegCaps
Product 100 Brand N/A
Solaray NAC, 600 mg, 60 VegCaps
Solaray NAC, 600 mg, 60 VegCaps
Product 100 Brand N/A
Solaray PQQ, Pyrroloquinoline, 10 mg, 30 VegCaps
Solaray PQQ, Pyrroloquinoline, 10 mg, 30 VegCaps
Product 100 Brand N/A
Nature's Life Energizing Biotin, 2,500 mcg, 100 Vegcaps
Nature's Life Energizing Biotin, 2,500 mcg, 100 Vegcaps
Product 100 Brand N/A
Nature's Life Energizing Biotin, 2,500 mcg, 200 VegCaps
Nature's Life Energizing Biotin, 2,500 mcg, 200 VegCaps
Product 100 Brand N/A
KAL Chelated Magnesium Bisglycinate, 180 Tablets (105 mg per Tablet)
KAL Chelated Magnesium Bisglycinate, 180 Tablets (105 mg per Tablet)
Product 100 Brand N/A
KAL Magnesium Orotate 200, 120 Vegcaps (50 mg per Capsule)
KAL Magnesium Orotate 200, 120 Vegcaps (50 mg per Capsule)
Product 100 Brand N/A
Ageless Foundation Laboratories UltraMax Gold™ with AlphaNeuro Complex®, 90 Veg Capsules
Ageless Foundation Laboratories UltraMax Gold™ with AlphaNeuro Complex®, 90 Veg Capsules
Product 100 Brand N/A
LifeTime Vitamins Relora, Mood Support, 250 mg, 120 Capsules
LifeTime Vitamins Relora, Mood Support, 250 mg, 120 Capsules
Product 100 Brand N/A
Source Naturals Taurine 1000, 1,000 mg, 120 Capsules
Source Naturals Taurine 1000, 1,000 mg, 120 Capsules
Product 100 Brand N/A
Natural Balance Glucomannan™, Maximum Strength, 90 Capsules (666 mg per Capsule)
Natural Balance Glucomannan™, Maximum Strength, 90 Capsules (666 mg per Capsule)
Product 100 Brand N/A
KAL Liposomal Calcium, 500 mg, 90 VegCaps
KAL Liposomal Calcium, 500 mg, 90 VegCaps
Product 100 Brand N/A
Healthy Origins Cognizin® Citicoline, 250 mg, 150 Capsules
Healthy Origins Cognizin® Citicoline, 250 mg, 150 Capsules
Product 100 Brand N/A
Healthy Origins Cognizin® Citicoline, 250 mg, 60 Capsules
Healthy Origins Cognizin® Citicoline, 250 mg, 60 Capsules
Product 100 Brand N/A
Healthy Origins Cognizin® Citicoline, 250 mg, 30 Capsules
Healthy Origins Cognizin® Citicoline, 250 mg, 30 Capsules
Product 100 Brand N/A
Olympian Labs L-Theanine, 400 mg, 60 Capsules
Olympian Labs L-Theanine, 400 mg, 60 Capsules
Product 100 Brand N/A
Natural Balance Long Jack, PowerMax™, 60 Vegetarian Capsules (100 mg per Capsule)
Natural Balance Long Jack, PowerMax™, 60 Vegetarian Capsules (100 mg per Capsule)
Product 100 Brand N/A
KAL B-6 B-12 Methyl Folate, Mixed Berry, 60 Micro Tablets
KAL B-6 B-12 Methyl Folate, Mixed Berry, 60 Micro Tablets
Product 97 Brand N/A
Nature's Life Benfotiamine, 150 mg, 60 Vegetarian Capsules
Nature's Life Benfotiamine, 150 mg, 60 Vegetarian Capsules
Product 95 Brand N/A
KAL Niacin, 50 mg, 200 Tablets
KAL Niacin, 50 mg, 200 Tablets
Product 93 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 Magnesium Stearate and Silica safe in supplements?

Magnesium Stearate 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. Some concerns exist regarding potential immune suppression with magnesium stearate. In GoodSupp's database, 20 products contain this ingredient. Consult your healthcare provider if you have specific concerns.

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

A combination of magnesium stearate (a lubricant) and silica (a flow agent). 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 Magnesium Stearate and Silica natural or synthetic?

Magnesium Stearate 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.