Magnesium Stearate

• Used as filler in caps
• Lubricating properties
  

Magnesium stearate, also called octadecanoic acid, magnesium salt, is a white substance which is solid at room temperature. It is a salt containing two equivalents of stearate (the anion of stearic acid) and one magnesium cation (Mg2+).  Because it is widely regarded as harmless, it is often used as a filling agent in the manufacture of medical tablets and capsules. In this regard, the substance is also useful because it has lubricating properties, preventing ingredients from sticking to manufacturing equipment during the compression of chemical powders into solid tablets. It is used to bind sugar in hard candies. It is also a common ingredient in baby powders. In pure powder form, the substance can be a dust explosion hazard, although this issue is effectively insignificant beyond the manufacturing plants using it.

When used as a filling agent in the manufacture of capsules and tablets, such as vitamins, the source of this ingredient is typically beef. However, there is an increasing number of vegetarian options in which the product specifically indicates it contains magnesium stearate from vegetable sources.

If your using capping 1fast400 products and need a filler, Magnesium Stearate makes a great one.