That’s *Anua Niacinamide 10 + TXA 4 Serum*, 30 mL/1.01 FL OZ dropper bottle. *Short summary:* - *Use*: Brightening face serum for dark spots and uneven tone - *Key actives*: 10% Niacinamide + 4% Tranexamic Acid (TXA) - *Claim*: Targets hyperpigmentation, post-acne marks, and dullness while improving skin texture - *Texture*: Lightweight, watery serum with a pink tint - *Best for*: Oily, acne-prone, or combination skin dealing with dark spots and redness It’s a K-beauty staple for fading marks without irritation. Niacinamide controls oil and brightens, while TXA blocks pigment pathways that cause stubborn discoloration. Use AM or PM after cleansing, before moisturizer. Always follow with SPF in the morning.