With increasing longevity, mature adults are in the maintenance phase of their lives over one third of their life. It follows then that preservation strategies become increasingly important. There is no more important focus than the cardiovascular system. Quest Flush-Free™ Niacin is a high-quality vitamin B3 supplement. Niacin (a form of vitamin B3) has long been prescribed for the treatment of cardiovascular conditions such as high cholesterol and triglyceride levels and poor circulation. Niacin also improves glucose, lipid, protein, and sterol metabolism.