It is an effective ingredient, and other auxiliary ingredients are needed for tabletting. Compared with coating, without it, your tablet computer will not be moisture-proof and anti-adhesive. Disintegrators such as starch, without which tablets illegally release VC in human gastric juice, tablets without auxiliary ingredients can rarely become drugs.

Natural vitamin c is a very easy thing to oxidize. Without a protective layer, it is estimated that it has been degraded almost before it is sold in pharmacies.

Preparation is a discipline, and many things are carefully designed by pharmacists, pharmacists or formulators, and there are many aspects to be considered. Many drugs are not as pure as possible. Like vitamin A and vitamin D, high purity is toxic, because the human body does not need so many doses, and it needs to be diluted thousands of times as a nutritional supplement to be used safely. The purpose of doing this is for safety.

I hope I can help you!