We use it like this in Korea!! October 18 2025, by numberskin Unlock Your Glow: My Honest Review of Mary&May Niacinamide + Chaenomeles Sinensis Serum! Niacinamide + Chaenomeles Sinensis Serum 30ml (Mary&May) Korean consumers rated it like this!! In Korea, the Mary&May Niacinamide + Chaenomeles Sinensis Serum has... Read more