The skin is the largest organ in the body and acts as a barrier to chemical, thermal, physical and, at times, biological agents. The skin’s functions include synthesis of vitamins, preventing loss of vital nutrients, excretion of waste products, thermoregulation and an aesthetic evolutionary role.1
Cosmetic procedures that improve the complexion of the skin are highly sought after in aesthetic practices, particularly procedures that improve hydration, pigmentation or reduce erythema, in my experience. The skin is designed to act as a barrier to prevent the movement of molecules from the environment into the body, so pharmaceutical and cosmeceutical products are continually being innovated to improve delivery of the active ingredients through this barrier. It is not only important what active ingredient is delivered into the skin, but how it is delivered and there are a plethora of…
