Vitamin B3, also known as Nicotinamide (a form of Niacin), is a vital water-soluble vitamin that plays a key role in energy production, cellular repair, and overall skin health. It is essential for the conversion of carbohydrates, fats, and proteins into energy, supporting optimal metabolism and reducing fatigue. Nicotinamide also has powerful anti-inflammatory and antioxidant properties, making it a popular ingredient in skincare products to help improve skin texture, reduce the appearance of fine lines, and combat acne.