Tiam Vitab3 Source Serum is a powerful serum infused with 10% niacinamide (Vitamin B3) and arbutin. It helps to brighten the complexion, reduce the appearance of hyperpigmentation, and improve skin texture. This lightweight, fast-absorbing serum also helps to control excess oil production and minimize the appearance of pores, making it suitable for all skin types, especially those with oily or acne-prone skin.