Healthy hair consists of three layers: the cuticle, cortex, and medulla. The cuticle, the outermost layer, protects the inner layers and reflects light, giving hair its natural shine. When the cuticle is damaged, hair can appear dull and lackluster. Factors like environmental conditions, poor hair care habits, and overall health can lead to dry, damaged, and dull hair. To combat these issues, adopt a gentle hair care routine. Wash your hair no more than once or twice a week with a hydrating, gentle shampoo to preserve natural oils. Always follow with conditioner, and consider using a weekly hair mask or daily leave-in conditioner to restore luster and softness. Protect your hair from excessive heat, sun exposure, and harsh environmental elements by wearing a hat or using protective hair products. Avoid chlorine and salt water damage by applying a leave-in conditioner before swimming or using a bathing cap.