[Paula’s Choice] 10% Niacinamide Booster 20ml[Paulas Choice] 10% Niacinamide Booster 20ml This concentrated 10% niacinamide serum booster visibly improves uneven skin tone and texture, minimizes pore size, reduces fine lines. Best treatment for pores and multiple sign of aging. How to Use Dispense 2 3 drops into the palm of your hand and then apply to your face. Add a couple more drops if you will also be applying to your neck and chest. During the day, finish with a moisturizer with SPF 30 or