Niacinamide is a form of Vitamin B3 and it’s indicated to reduce the appearance of skin blemishes and congestion, including acne scars, stubborn dark spots and uneven skin tone. Also, Niacinamide helps to reduce inflammation (redness caused by acne, eczema and other inflammatory skin conditions) and the appearance of enlarged pores. The added 1% Zinc content in this serum is also helpful to heal the skin and prevent acne by regulating your sebum activity. On another note, if Vitamin C is part of your daily skincare routine, it’s important to not use these 2 potent vitamins at once because Niacinamide can affect the integrity of Vitamin C. Thus, segment it as such that, ideally, apply Niacinamide during the day and Vitamin C in the evening.