Dual + is formulated with a unique combination of two forms of azelaic acid and lightening actives to offer a double action against pigment spots and emerging breakouts. Comedolytic and non-comedogenic effect. Prescribed to target the appearance of pigments spots and acne-prone skin induced imperfections. Non-comedogenic Fragrance free Silicone free Vegan Apply in the evening to the full face focusing especially on the areas of concern. Increase frequency progressively, up to 2 times per day.