Hydrated Silica

Generally Safe Flow AgentSynthetic

Hydrated Silica 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 3 supplements in the GoodSupp database. Hydrated silica is a form of silicon dioxide with water molecules attached.

3 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 Hydrated Silica?

Hydrated silica is a form of silicon dioxide with water molecules attached.

Common Names Hydrated Silica
Type Flow Agent
Origin Synthetic / Manufactured
Safety Rating Generally Safe

Why is Hydrated 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 Hydrated Silica?

Generally no. Hydrated 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 Hydrated Silica

These 3 highest-scoring supplements in our database use Hydrated Silica.

Nature's Way European Elderberry Berries & Flower
Nature's Way European Elderberry Berries & Flower
Product 100 Brand N/A
Nature's Way Nature’s Way Ashwagandha Supplement 500 mg
Nature's Way Nature’s Way Ashwagandha Supplement 500 mg
Product 100 Brand N/A
New Chapter Fermented Vitamin B Complex
New Chapter Fermented Vitamin B Complex
Product 92 Brand N/A
Related Ingredients
Calcium Silicate Safe Colloidal Silicon Dioxide Generally Safe Colloidal Silicon Dioxide and Magnesium Stearate 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 Hydrated Silica safe in supplements?

Hydrated 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, 3 products contain this ingredient. Consult your healthcare provider if you have specific concerns.

What is Hydrated Silica and why is it in my supplement?

Hydrated silica is a form of silicon dioxide with water molecules attached. As a flow agent, it prevents powder ingredients from clumping and ensures uniform filling of capsules during manufacturing. It appears in 3 products in the GoodSupp database.

Is Hydrated Silica natural or synthetic?

Hydrated 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 — 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.