The skincare trend known as 早c晚a功效 has become popular because it focuses on a simple but effective routine: using Vitamin C in the morning and Vitamin A (retinol) at night. This method is designed to improve skin brightness during the day and repair skin damage during the night. In the morning, Vitamin C works as a powerful antioxidant. It helps protect the skin from sun exposu... https://www.derm-mart.com.hk/collections/pigment-and-sun-damaged