A brightening serum (淡斑精華) is a skincare product specially designed to reduce dark spots, pigmentation, acne marks, and uneven skin tone. It is widely used in modern skincare routines because it targets skin discoloration more effectively than regular creams or lotions. The main purpose of a 淡斑精華 is to improve skin clarity and restore a smooth, radiant complexion. Most brig... https://www.derm-mart.com.hk/collections/pigment-and-sun-damaged