10 Truths About Magnesium Stearate Powder You Should Know

Magnesium Stearate powder

What is Magnesium Stearate?

Magnesium stearate is a white, powdery substance commonly used as a lubricant in producing supplements, medications, and other pharmaceutical products. It is the magnesium salt of stearic acid, a saturated fatty acid in many animal and vegetable fats. Magnesium stearate is considered a safe and inert substance used to prevent ingredients from sticking to manufacturing equipment and improve the flow of powders during production. Some pills and capsules contain it as a filler. Magnesium stearate is generally considered safe and has been approved by regulatory bodies such as the United States Food and Drug Administration (FDA).

What is Magnesium Stearate Powder Made From?

The interaction of magnesium hydroxide or magnesium oxide with stearic acid, a kind of fatty acid present in many animal and vegetable fats, produces magnesium stearate powder. The reaction results in the formation of magnesium stearate, a white, powdery substance commonly used as a lubricant and a flow agent in the production of supplements, medications, and other pharmaceutical products. The magnesium stearate powder is then purified and processed to meet the required specifications for use in different applications.

Is Magnesium Stearate All-Natural?

Magnesium stearate is naturally formed since it is a salt of stearic acid found in animal and vegetable fats. However, magnesium stearate is typically produced by a chemical process in which magnesium hydroxide or magnesium oxide reacts with stearic acid to make magnesium stearate. As a result, magnesium stearate is not an entirely natural material. Nevertheless, it is regarded as harmless and is commonly utilized in manufacturing supplements, pharmaceuticals, and other pharmaceutical items.

How To Manufacture Bulk Magnesium Stearate Powder?

Magnesium stearate powder is typically manufactured by reacting magnesium hydroxide or magnesium oxide with stearic acid, followed by purification and processing. The general steps involved in the bulk manufacturing of magnesium stearate powder are as follows:

  1. Preparation of raw materials: The magnesium hydroxide, magnesium oxide, and stearic acid are obtained and prepared for the reaction.
  2. Reaction: The magnesium hydroxide or magnesium oxide is mixed with stearic acid and heated to a specific temperature to initiate the response, forming magnesium stearate.
  3. Purification: The magnesium stearate is then purified to remove any impurities or byproducts that may have formed during the reaction.
  4. Drying: The purified magnesium stearate is dried to remove any remaining moisture.
  5. Milling: The dried magnesium stearate is milled to produce a fine powder with a specific particle size distribution.
  6. Packaging: The magnesium stearate powder is then packaged in suitable containers for storage and transport.

What Industries Can Use Magnesium Stearate Powder?

Magnesium stearate powder has a wide range of applications and is used in various industries, including:

  • Pharmaceutical industry

Magnesium stearate is widely used as a lubricant, flow agent, and binder in the production of tablets, capsules, and other pharmaceutical products.

  • Dietary supplement industry

Magnesium stearate is used as a flow agent and lubricant to produce nutritional supplements in tablet, capsule, and powder form.

  • Cosmetics industry

Magnesium stearate is used as a thickener, emulsifier, and lubricant in producing cosmetics such as creams, lotions, and powders.

  • Food industry

Magnesium stearate is used as a food additive and emulsifier in various food products such as processed cheese, confectionery, and bakery products.

  • Polymer industry

Magnesium stearate is a processing aid and lubricant in producing polymers and plastics.

  • Paints and coatings industry

Magnesium stearate is a stabilizer and flow agent in producing paints and coatings.

Magnesium stearate powder is versatile and widely used in many industries due to its lubricating, flow-enhancing, and stabilizing properties.

Why Is Magnesium Stearate In So Many Supplements?

Magnesium stearate is commonly found in supplements due to its lubrication, consistency, flowability, mold release, and cost-effective properties. It ensures smooth manufacturing processes, better quality control, and accurate dosing in capsules or tablets. It’s safety and wide acceptance by regulatory agencies contribute to its prevalence in the supplement industry.

Why Is Magnesium Stearate Used As A Lubricant?

Magnesium stearate is used as a lubricant in pharmaceutical and supplement industries due to its hydrophobic nature, ability to form a thin, slippery film, low concentration requirement, and compatibility with various ingredients. These properties help reduce friction, prevent sticking, and ensure smooth processing during manufacturing.

Is It Best To Use Magnesium Stearate In Pills?

As mentioned previously, magnesium stearate is a widely used excipient and lubricant in the pharmaceutical industry’s production of tablets and capsules. Its primary function is to prevent active ingredients and other excipients from sticking to the machinery during manufacturing, ensuring consistent tablet quality and smooth processing.

However, determining whether magnesium stearate is the “best” option for pills depends on several factors, including the manufacturer’s specific formulation, manufacturing process, and objectives. Alternative lubricants and excipients like stearic acid, calcium stearate, or glyceryl behenate may be more suitable for particular formulations.

Is This Ingredient Legal By FDA?

It is generally recognized as safe (GRAS) by the US Food and Drug Administration (FDA) when used by current good manufacturing practices (cGMPs). The FDA does not require premarket approval of GRAS substances.

Where Is The Best Supplier To Buy Magnesium Stearate In Bulk?

Nutri Avenue is a top supplier of high-quality magnesium stearate in bulk, serving diverse industries like pharmaceuticals and cosmetics. Our commitment to quality ensures exceptional products, enabling customers to excel in their respective markets. For more details about raw ingredients, you can visit our official website, or you can contact our sale team directly to get our support ASAP.

Share this post with your friends

Get a Free Quote

Stay in Touch

How can we help? Get free samples, pricing and stock list.

USA address
1641 W Main St, Ste 222, Alhambra, CA 91801
China address:
Room 209 , Huana Business Center , NO 1733 Lianhua Road , Minhang District , Shanghai , China 201103

Top Sellers


Nutri Avenue

how can we help ?

Bulk raw Ingredients Supplier

Nutri Avenue

Leave your details below, and let us help you get fresh, high-quality ingredients ASAP.