The Tirtir Niacinamide 20% Serum 30ml is a potent brightening and clarifying serum formulated with a high concentration of niacinamide to target uneven skin tone, excess sebum, and enlarged pores. Ideal for acne-prone, oily, or combination skin types, this lightweight serum helps reduce inflammation, fade post-acne marks, and strengthen the skin barrier. The 20% niacinamide works alongside soothing ingredients to minimize irritation while visibly improving skin texture and radiance. Regular use can help regulate oil production, refine pores, and combat dullness for a more balanced complexion. This serum is especially beneficial for those struggling with hyperpigmentation or persistent breakouts, offering a multitasking solution for clearer, healthier-looking skin.