NIACINAMIDE & RETINOL FACIAL SERUM PEARLS - NIACINAMIDE The pearls contain Niacinamide, a revitalizing, firming, and even-looking vitamin that promotes hydration of the skin and strengthens the skin barrier. SERUM - RETINOL The Retinol contained in the serum promotes skin regeneration, stimulating the synthesis of collagen and elastin, providing elasticity, firmness, and luminosity to the skin.