Reduction of Hyperpigmentation: Niacinamide fade hyperpigmentation and dark spots over time, making it an effective ingredient for those concerned about post-inflammatory hyperpigmentation or sun damage. Collagen Production: Niacinamide stimulate the production of collagen and elastin, which are essential for skin elasticity and firmness. Hydration: Niacinamide can help the skin retain moisture, which is crucial for maintaining skin health and a youthful appearance. Wrinkle Reduction: Over time, the skin's barrier function can weaken, leading to increased moisture loss and the development of fine lines. By strengthening the skin's barrier, niacinamide help reduce the appearance of wrinkles and fine lines.