Skin type refers to the classification of skin based on its characteristics and needs. The main types include normal, dry, oily, combination, and sensitive. Each type has unique features, such as oil production levels, moisture retention, and reaction to environmental factors. Understanding your skin type is essential for choosing the right skincare products and routines. Factors that influence skin type include genetics, age, and environmental conditions. For example, oily skin often results from overactive sebaceous glands, while dry skin may be caused by a lack of moisture. Identifying your skin type can help you maintain healthy skin and address specific concerns effectively.