We use it like this in Korea!! October 18 2025, by numberskin Unlock Your Glow: NEOGEN Real Niacinamide 15% Serum x SHUYA TOYA Edition Review & Why It's My Holy Grail! Real Niacinamide 15% Serum 30ml x SHUYA TOYA Edition (+Sticker Gift) (NEOGEN) Korean consumers rated it like this!! In the vibrant K-beauty scene,... Read more