Search Advances in Lip Skin Biology and Anti-Aging Strategies

The stratum corneum of the lip skin is thinner than that of other facial areas.As the most delicate part of the body, the dermis contains almost no sebaceous glands, making it more susceptible to external environmental factors and exhibiting higher transdermal absorption.Its barrier function primarily relies on the formation of the stratum corneum and a thin layer of sebum.In consideration of the intricacy inherent in the structural anatomy of the skin, extant research on the subject of lip ageing remains comparatively limited in scope.The primary focus of current studies is on the management of dryness, the prevention and treatment of cheilitis, and lip lifting procedures.As the human organism undergoes the process of ageing, the skin of the lips experiences a loss of collagen and a breakdown of elastic fibres.This process leads to the manifestation of signs of ageing, such as the blurring of lip contours and the deepening of lip lines.Concurrently, lip conditions such as cheilitis and cold sores frequently afflict individuals, impacting both the health and appearance of the lips.In addressing these issues, a comparative analysis will be conducted between lip skin and ordinary skin, integrating lip anatomy and pathology to explore lip ageing and lip lesions.Furthermore, a research framework for lip ageing will be established, providing a scientific basis for the development of lip cosmetics and clinical interventions.