Ceramides are natural lipids found in the skin that play a vital role in maintaining a healthy skin barrier. By reinforcing the barrier, ceramides help retain moisture, protect against irritants, and promote skin repair. They are beneficial for all skin types, especially dry and aging skin. Ceramide-containing skincare products, such as moisturizers and cleansers, can help strengthen the skin's barrier and improve overall skin health. As with any skincare ingredient, it's essential to consider individual sensitivities and consult a professional if needed.