Niacin Acid belongs to the vitamin B group, also known as vitamin B3, it is water soluble. Another form of Vitamin B3 is Nicotinamide. Its appearance is white crystaline powder or granular, free flowing, sparingly soluble. It is seldom affected by acids, bases,oxygen, heavy metal ions, light and heat.

its main functions as animal feed additives:  
prevent skin lesions and digestive diseases;
promote animal growth;
improve egg production and hatching rate;
ensure feather growth;
treat mucosal inflammation and ulceration;
Prevent the livestock and poultry from perosis.