10% Niacinamide Serum with Zinc PCA Face Serum. Niacinamide or Vitamin B3 has been clinically proven to help visibly improve large pores and prevent acne. Zinc PCA helps to reduce any swelling and redness around your breakouts. Olive Squalane deeply soothes and moisturizes without leaving an oily finish. It helps slow down transepidermal water loss and boosts skin moisture, making the complexion look more radiant and nourished. Regular use of this multitasking Face Serum helps to  improve skin texture.