How often should skin be cleansed as a general guideline?

Cleansing the skin twice a day is recommended as a general guideline because it helps remove dirt, oil, and impurities that accumulate throughout the day and night. This process is crucial for maintaining skin health and preventing issues such as acne, clogged pores, and dullness. Cleansing in the morning prepares the skin for the application of other products, such as moisturizers and sunblock, while cleansing in the evening removes makeup and pollutants, allowing the skin to rejuvenate overnight.

By following this two-step cleansing routine, the skin can maintain its natural barrier function and hydration levels, promoting a clearer, healthier complexion.