Experts say stearic acid is the only long-chain saturated fat that does not raise cholesterol levels. In the form of a powder, the salt forms the coating that you see on medications and vitamins.

Magnesium stearate (MgSt) is a salt made of stearic acid and magnesium. It is a common food additive and inactive ingredient (excipient) in medications and dietary supplements, such as capsules, ...