1. Is the toner step optional?
Expert advice: The three steps of cleansing, toning (with cosmetic water), and moisturizing are closely linked and none can be omitted. They are the most basic factors in creating beautiful skin.
Toner can kill bacteria and regulate the skin's pH level, mitigate the cumulative damage of tap water (hard water) on the skin, and clear away residual oil, makeup, and metallic/chloride compounds found in tap water. Therefore, cosmetic water is more than just a bottle of water; it provides a healthy and gentle regulation for the skin, aiding in the effective absorption of subsequent skincare ingredients.