Lip lines, which are often called ‘lipstick lines’ or ‘smoker lines’ describe the small vertical lines that form on the skin above and below the lips. They often develop in our 30s and become more prominent in our 40s. They are caused by:

• Loss of collagen, elastin and skin hydrators as we age (exacerbated by smoking and sun exposure)
• Facial expression, causing the skin to be repeatedly creased
• Gravity, causing the skin to drop
• Sleep, causing the face to be scrunched by the pillow