Vegan Doctor Formulated Probiotic serum with Vitamin B ( Nicotinamide), beta glucan & hyaluronic acid to help Calm & rebalance the skin’s ecosystem. Good for dry, sensitive or inflamed skin. Our Vitamin B Probiotic Serum booster helps to soothe & balance the skin to be more resilient to environmental or external aggressors. Safe & Suitable for all skin types.