Magnesium stearate is a salt that forms when stearate molecules bond with a magnesium ion. Stearate comes from stearic acid, a long-chain. Magnesium stearate is a fine white powder that sticks to your skin and is greasy to the touch. Makers of many processed foods, cosmetics, and pharmaceuticals also add magnesium stearate to their products.
Its main job is to keep the ingredients in a capsule from sticking together. It also forms a barrier between the medicines and the machines that make them. The powder improves the consistency and quality of the medication capsules.
Another function of the powder is to slow the absorption and breakdown of drugs. This way, your body absorbs them in the correct area of your bowel. Without magnesium stearate, it would be hard to predict a medication’s outcome, quality, and consistency.
In the cosmetic world, magnesium stearate is a helpful ingredient for many things. It acts as a bulking agent, an anti-caking agent, a colorant, and more.