Concentrated Default sorting Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low Sort by editor review Added to wishlistRemoved from wishlist 0 Add to compare Paula’s Choice CLINICAL 20% Niacinamide Vitamin B3 Concentrated Face Serum, Anti-Aging Serum for Face, Treatment for Discoloration & Minimizing Large Pores, Fragrance-Free, 0.67oz Added to wishlistRemoved from wishlist 0 Add to compare $55.00