Microcrystalline Cellulose and Stearic Acid (Vegetable Source)

Safe FillerNatural

Microcrystalline Cellulose and Stearic Acid (Vegetable Source) is a naturally derived filler used in dietary supplements. Safety rating: Safe. It is widely considered safe at typical supplement doses. Found in 14 supplements in the GoodSupp database. A combination of purified wood pulp and a fatty acid derived from vegetables.

14 Products use this
Safe Safety rating
Filler Category
Yes Natural origin

Safety Verdict: Safe

This ingredient is rated safe for use in dietary supplements.

What is Microcrystalline Cellulose and Stearic Acid (Vegetable Source)?

A combination of purified wood pulp and a fatty acid derived from vegetables.

Common Names Microcrystalline Cellulose and Stearic Acid (Vegetable Source)
Type Filler
Origin Natural / Plant-derived
Safety Rating Safe

Why is Microcrystalline Cellulose and Stearic Acid (Vegetable Source) used in supplements?

It is used as a filler and lubricant.

Role in supplements: Filler — adds bulk to fill capsules or tablets to a standard size. Does not contribute to the supplement's active benefits.

Should you be concerned about Microcrystalline Cellulose and Stearic Acid (Vegetable Source)?

No. Microcrystalline Cellulose and Stearic Acid (Vegetable Source) 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 Microcrystalline Cellulose and Stearic Acid (Vegetable Source)

These 14 highest-scoring supplements in our database use Microcrystalline Cellulose and Stearic Acid (Vegetable Source).

NOW Foods Cordyceps, 90 Veg Capsules (750 mg per Capsule)
NOW Foods Cordyceps, 90 Veg Capsules (750 mg per Capsule)
Product 100 Brand N/A
NOW Foods Selenium, 200 mcg, 90 Veg Capsules
NOW Foods Selenium, 200 mcg, 90 Veg Capsules
Product 100 Brand N/A
Protocol For Life Balance Cordyceps, 750 mg, 90 Veg Capsules
Protocol For Life Balance Cordyceps, 750 mg, 90 Veg Capsules
Product 100 Brand N/A
NOW Foods Panax Ginseng, 500 mg, 250 Veg Capsules
NOW Foods Panax Ginseng, 500 mg, 250 Veg Capsules
Product 93 Brand N/A
NOW Foods Red Mineral Algae, 180 Veg Capsules
NOW Foods Red Mineral Algae, 180 Veg Capsules
Product 88 Brand N/A
Protocol For Life Balance Calcium D-Glucarate, 500 mg, 90 Veg Capsules
Protocol For Life Balance Calcium D-Glucarate, 500 mg, 90 Veg Capsules
Product 87 Brand N/A
NOW Foods C-500, Calcium Ascorbate-C, 100 Veg Capsules
NOW Foods C-500, Calcium Ascorbate-C, 100 Veg Capsules
Product 87 Brand N/A
NOW Foods Activated Charcoal, 200 Veg Capsules (280 mg per Capsule)
NOW Foods Activated Charcoal, 200 Veg Capsules (280 mg per Capsule)
Product 87 Brand N/A
NOW Foods Dopa Mucuna, 90 Veg Capsules
NOW Foods Dopa Mucuna, 90 Veg Capsules
Product 81 Brand N/A
Protocol For Life Balance Mucuna Extract, 400 mg, 90 Veg Capsules
Protocol For Life Balance Mucuna Extract, 400 mg, 90 Veg Capsules
Product 81 Brand N/A
NOW Foods EcoGreen Multi, Iron-Free, 180 Veg Capsules
NOW Foods EcoGreen Multi, Iron-Free, 180 Veg Capsules
Product 80 Brand N/A
Protocol For Life Balance Ortho Multi™ Greens, 180 Veg Capsules
Protocol For Life Balance Ortho Multi™ Greens, 180 Veg Capsules
Product 80 Brand N/A
NOW Foods Glucomannan, 575 mg, 180 Veg Capsules
NOW Foods Glucomannan, 575 mg, 180 Veg Capsules
Product 75 Brand N/A
NOW Foods Dopa Mucuna, 180 Veg Capsules
NOW Foods Dopa Mucuna, 180 Veg Capsules
Product 75 Brand N/A
Related Ingredients
Almond Butter Generally Safe Almonds Generally Safe Apple Fiber Safe Broccoli Safe Brown Rice Generally Safe Brown Rice Flour Safe Brown Rice Protein Generally Safe Buttermilk Powder Generally Safe
Frequently Asked Questions
Is Microcrystalline Cellulose and Stearic Acid (Vegetable Source) safe in supplements?

Yes. Microcrystalline Cellulose and Stearic Acid (Vegetable Source) 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, 14 products contain this ingredient. Consult your healthcare provider if you have specific concerns.

What is Microcrystalline Cellulose and Stearic Acid (Vegetable Source) and why is it in my supplement?

A combination of purified wood pulp and a fatty acid derived from vegetables. As a filler, it adds bulk to capsules or tablets to achieve a standard size without affecting the active ingredients. It appears in 14 products in the GoodSupp database.

Is Microcrystalline Cellulose and Stearic Acid (Vegetable Source) natural or synthetic?

Microcrystalline Cellulose and Stearic Acid (Vegetable Source) 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.

Check Any Supplement's Ingredients

Scan a barcode with GoodSupp to instantly see safety ratings for every ingredient.

Download on App Store
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.