Niacin deficiency can cause diarrhea, memory loss, red/swollen tongue, and red, flaky skin. Niacinamide (nicotinamide) is a form of vitamin B3 (niacin) and is used to prevent and treat niacin (pellagra) deficiency. Niacinamide is often used instead of niacin because it causes fewer side effects (eg, flushing).

Peeling skin can occur due to direct damage from external factors or be a sign of an immune system disorder or other disease. Understanding the causes and how to treat peeling skin on your hands will help you quickly improve this uncomfortable condition.