“Vitamin C is a potent antioxidant and brightening ... Schwarz says nighttime is best for those with sensitive skin. “You can add a niacinamide serum at night right after cleansing and before ...
Which vitamin C serum is best for hyperpigmentation? Vitamin C serums that contain other brightening ingredients like niacinamide and kojic acid can be helpful for hyperpigmentation. Some of the ...