What are the 4 basics of skincare?

The 4 basics of skincare are: 1) Cleansing to remove dirt, oil, and impurities, 2) Treating with serums or targeted products for specific concerns, 3) Moisturizing to hydrate and protect skin barrier, and 4) Protecting with sunscreen during day to prevent UV damage. These four steps create foundation for healthy skin. You can adjust products within each step based on your skin type and concerns.