Niacinamide and Hyaluronic Acid Serum: Benefits, How They Work Together & How to Use Them If you were building a skincare serum around two ingredients that solve distinctly different—but frequently overlapping—skin concerns, niacinamide and hyaluronic acid would be a remarkably logical combination. Niacinamide is a form of vitamin B3 used in skincare for concerns ranging from uneven-looking … Continue reading Niacinamide and Hyaluronic Acid Serum: Benefits, How They Work Together & How to Use Them