Experience the synergy of next-generation toning ingredients TXA+ Niacinamide! APRILSKIN TXA Niacinamide Toning Shot 99 Serum is Formulated with 99% High-purity Tranexamic acid 3% and Niacinamide 5%, this serum targets dull skin and uneven skin tone, leaving your complexion with a healthy, radiant glow.