Niacin has some interesting bonding properties to antioxidants and their release, and if you're going to increase circulation, you want to make sure what you're circulating are things that will help your body
and your skin
. Detox for a week, avoid sugars, bad fats, get your daily vitamins, and lots of water vegtables w potassium like cucumber, romaine, & celery. Then try the Niacin at a VERY low dose, you'll get a slight flush, like s mild sunburn.