Vitamin B3, also known as niacin ... One thing to keep in mind is that taking niacin in excess of 500 mg daily may cause temporary flushing, itching, rash, gastric disturbances, lightheadedness ...

Niacinamide, also known as vitamin B3, is a popular ingredient in skincare ... Niacinamide (Vitamin B-3) 500 mg, Energy Production*, 100 Veg Capsules could be a good choice. We have been using ...