numbuzin, Serum No. 5 Goodbye Blemish, 50 ml() . . (2 3 ) . . This blemish serum is formulated with (active) ingredients like salicylic acid, niacinamide and tea tree oil, which are perfect for unclogging pores and reducing inflammation. With its unique blend of ingredients, it targets and eliminates blemishes, including acne, dark spots and hyperpigmentation. After cleanser, toner and preferably also essence, apply an appropriate amount (2 3 pumps) to the face and gently pat in to aid