Anua Niacinamide 10 + Txa 4 Dark Spot Removing Serum Is A Powerful Serum Formulated To Target And Reduce Dark Spots On The Skin. It Contains A Combination Of 10% Niacinamide (Vitamin B3) And Txa 4 (Tranexamic Acid) Known For Their Brightening And Skin-Evening Properties. Niacinamide Helps To Reduce The Appearance Of Hyperpigmentation And Uneven Skin Tone, While Txa 4 Works To Inhibit Melanin Production, Resulting In A More Even Complexion. With Regular Use, This Serum Helps To Fade Dark Spots, Leaving The Skin Looking Brighter, Clearer, And More Radiant.