Organic Rice Hull

Safe Flow AgentNatural

Organic Rice Hull is a naturally derived flow agent used in dietary supplements. Safety rating: Safe. It is widely considered safe at typical supplement doses. Found in 20 supplements in the GoodSupp database. Organic rice hull is the outer covering of rice grains, used as a flow agent.

20 Products use this
Safe Safety rating
Flow Agent Category
Yes Natural origin

Safety Verdict: Safe

This ingredient is rated safe for use in dietary supplements.

What is Organic Rice Hull?

Organic rice hull is the outer covering of rice grains, used as a flow agent.

Common Names Organic Rice Hull
Type Flow Agent
Origin Natural / Plant-derived
Safety Rating Safe

Why is Organic Rice Hull used in supplements?

It is used to improve powder flow during manufacturing.

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

Should you be concerned about Organic Rice Hull?

No. Organic Rice Hull is widely regarded as safe for use in dietary supplements at typical levels. It has a long history of use and is accepted by major regulatory bodies.

No action needed. This ingredient is safe at amounts used in supplements.

Top-rated products containing Organic Rice Hull

These 20 highest-scoring supplements in our database use Organic Rice Hull.

Dr. Mercola Organic Rhodiola Extract 340 mg
Dr. Mercola Organic Rhodiola Extract 340 mg
Product 100 Brand N/A
Dr. Mercola Pure Power, Creatine Monohydrate, Unflavored
Dr. Mercola Pure Power, Creatine Monohydrate, Unflavored
Product 100 Brand N/A
Dr. Mercola Pure Power Creatine Monohydrate - Supports Strength & Performance - Unflavored - NSF Certified - Quick-Dissolving Powder
Dr. Mercola Pure Power Creatine Monohydrate - Supports Strength & Performance - Unflavored - NSF Certified - Quick-Dissolving Powder
Product 100 Brand N/A
Natural Factors Stress-Relax Ashwagandha 600 mg
Natural Factors Stress-Relax Ashwagandha 600 mg
Product 100 Brand N/A
Sports Research Organic Ashwagandha 600 mg
Sports Research Organic Ashwagandha 600 mg
Product 100 Brand N/A
Double Wood Supplements Organic Lemon Balm Capsules
Double Wood Supplements Organic Lemon Balm Capsules
Product 100 Brand N/A
JYM Supplement Science L-Carnitine Carnipure
JYM Supplement Science L-Carnitine Carnipure
Product 100 Brand N/A
Dr. Mercola Essential Mineral Complex
Dr. Mercola Essential Mineral Complex
Product 98 Brand N/A
Dr. Mercola Vitamins A-D-K
Dr. Mercola Vitamins A-D-K
Product 97 Brand N/A
Dr. Mercola Biothin Organic Metabolic Pre + Post + Probiotics Unflavored
Dr. Mercola Biothin Organic Metabolic Pre + Post + Probiotics Unflavored
Product 97 Brand N/A
Transparent Labs Synbiotic 3-in-1 Complete Gut Health
Transparent Labs Synbiotic 3-in-1 Complete Gut Health
Product 96 Brand N/A
Thorne Complete Biotic, Frosted Orange, 30 Stick Packs, 0.04 oz (1 g) Each
Thorne Complete Biotic, Frosted Orange, 30 Stick Packs, 0.04 oz (1 g) Each
Product 93 Brand N/A
Dr. Mercola Organic Vitamin C, Amla Extract
Dr. Mercola Organic Vitamin C, Amla Extract
Product 93 Brand N/A
Dr. Mercola Serrapeptase Enzymes
Dr. Mercola Serrapeptase Enzymes
Product 93 Brand N/A
Dr. Mercola Fermented Beta Glucans
Dr. Mercola Fermented Beta Glucans
Product 93 Brand N/A
Wholesome Story Vitex 500 mg
Wholesome Story Vitex 500 mg
Product 93 Brand N/A
Dr. Mercola Essential Mineral Complex
Dr. Mercola Essential Mineral Complex
Product 92 Brand N/A
Dr. Mercola Zinc Plus Selenium
Dr. Mercola Zinc Plus Selenium
Product 91 Brand N/A
Dr. Mercola Blood Pressure Support
Dr. Mercola Blood Pressure Support
Product 91 Brand N/A
Dr. Mercola Organic Blood Pressure Support
Dr. Mercola Organic Blood Pressure Support
Product 91 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 Organic Rice Hull safe in supplements?

Yes. Organic Rice Hull is rated safe for use in dietary supplements at typical levels. This rating is based on regulatory assessments, published safety research, and its long history of use in the supplement industry. It is widely accepted by major regulatory bodies including the FDA and EFSA. In GoodSupp's database, 20 products contain this ingredient. Consult your healthcare provider if you have specific concerns.

What is Organic Rice Hull and why is it in my supplement?

Organic rice hull is the outer covering of rice grains, 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 Organic Rice Hull natural or synthetic?

Organic Rice Hull is naturally derived, meaning it comes from natural sources such as plants, minerals, or animal products rather than being chemically synthesized. Natural-origin ingredients are preferred by many consumers, though it's important to note that 'natural' does not automatically mean 'safer' — safety depends on the specific substance, its purity, and the amount used. The safety rating assigned by GoodSupp is based on the ingredient's actual safety profile, not its origin.

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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.