Skin is considered to be the largest organ of the human body, accounting for 12-15% of body weight and covering 1.5 to 2 square metres of area.1 It is a highly dynamic and complex organ with a large number of specific roles. Aside from providing a key physical barrier to the outside world, it is also the site of significant endocrine, immunological and metabolic function. The skin forms part of the vital communication network between the inside and outside world and this is only half the story. The skin is not only an indispensable biological organ, but also functions as a social organ. It plays an important cosmetic role with a significant impact on one’s social interactions, confidence, body image, job prospects and even mate selection. Skin is often, rightly or wrongly, also used crudely as a surrogate marker for the perception of an individual’s general health status.
To be able to develop and formulate personal care products to supplement the skin and its numerous processes, it is important to have a solid understanding of the skin’s structure and function in…
