PROSPETTIVE DERMOCOSMETOLOGICHE NELL'INVECCHIAMENTO CUTANEO

After having highlighted the deficit of epidemic hydration and the alteration of the surface microcirculation observed in elderly compared to middle age subjects, the authors report the results of a study to evaluate the action of a hydrating-barrier cream compared to the occlusive application of a polyethylene film on the skin of elderly subjects. Hydration and surface microcirculation parameters were evaluated respectively using a Courage and Khazaka corneometer and Agema 870 telethermograph fitted with Surgicon thermostimulator. After a single application of cream and the limited application for 5 hours of an occlusive polyethylene film onto the skin on the back, the data obtained show that the cream had a positive and more significant effect on hydration and blood supply. Daily applications for a period of 12 consecutive days showed a progressive increase in the intensity and duration of epidermal hydration and active superficial cutaneous hyperemia caused by the cream rather than the polyethylene film. In the light of these results the authors conclude that the dermocosmetic use of occlusive polyethylene film should be excluded due to the scarce positive effects and the possible damage caused by long-term use. However, it might possibly be used as an aid to enhance the absorption of pharmacological agents. In conclusion, the authors affirm that the cream used represents a valid cosmetic aid in the prevention and treatment of skin aging, and in particular photoinduced aging, and it should be used daily for repeated cycles. Above all, it is important to consider the parallel relationship between skin hydration and active papillary hyperemia, thus underlining its major therapeutic value.