Vitamin B3, also called niacin and niacinamide, is an important water-soluble vitamin that can be found in many common foods including certain types of meat and organ meat, tuna fish, seeds, mushrooms and others.

Niacin is a part of the vitamin B complex, along with other B vitamins including Vitamin B1 (thiamine), Vitamin B2 (riboflavin) and more.

Vitamin B3, which is usually medically referred to as niacin, comes in 3 forms: nicotinic acid, Niacinamide and Inositol Hexaniacinate.

Appearance             White crystal or crystalline powder
Assay                     99.0% -101.0%
Chloride                0.02% Max
Sulfate               0.02% Max.
Heavy Metals             0.002 Max