Why is supplemental niacin important Niacin is well known for aiding fat and cholesterol metabolism, which can have an impact on circulation: Niacin helps support healthy cholesterol levels that are already within normal limits, and raises beneficial high density lipoprotein (HDL) cholesterol. Through peripheral vasodilatation, niacin also supports the retention of healthy blood pressure that is already within the normal range. Why use HexaNiacin™ dietary supplement It provides a flush-free form of niacin to help support cholesterol levels already within normal limits: This high-potency inositol hexaniacinate is released gradually into the system. Unlike other forms of niacin, which may cause side effects such as temporary flushing, itching and skin reddening. HexaNiacin™ is a superior, non-flushing form of niacin that has been widely used in Europe for over 30 years.