Written by Rabindra Shrestha Filed under niacinamide Previous / Next Sodium PCA/Niacinamide Nov 02, 2020 Written by Rabindra Shrestha Arrow Thin Left Icon Arrow Thin Right Icon When Sodium PCA, a natural humectant, is mixed with Niacinamide (Vitamin B3), this duo can improve skin texture and reveal a more radiant, even tone.