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Pol J Cosmetol 2010, 13(3): 177-195pl,en  Evaluation of the efficacy of vitamin A and its derivatives in skin careKinga Burda, Małgorzata Walędziak, Krzysztof Kus, Elżbieta Nowakowska, Piotr Ratajczak, Anna Gandecka, Michał Michalak Katedra i Zakład Farmakoekonomiki i Farmacji Społecznej, Uniwersytet Medyczny im. Karola Marcinkowskiego w Poznaniu Summary Introduction. Modern cosmetology is still searching for new active substances that, used in a care product, would positively influence skin and skin adnexa. For years, however, many cosmetic formulations have been based on vitamins, whose varied properties allow them to be widely used both in skin care and in the treatment of many skin diseases. Aim. The aim of the study was to evaluate the use of vitamin A in cosmetics from the perspective of people educated in the area of cosmetics/cosmetology and to determine in which skin problems vitamin A is used in cosmetics and how effective it is, in the opinion of specialists. Material and method. The study, lasting from mid-March to the beginning of June 2010, included 65 persons. The study consisted in surveying with a questionnaire. The survey was directed at persons educated in cosmetics/cosmetology. The questionnaire was designed to be useful and intelligible. Results. The results obtained with the use of the measure prepared indicate that vitamins E, A - in the form of retinyl and retinol palmitate - and C are the most common vitamins used in cosmetic products. In the opinion of the survey subjects, vitamin A is most effective when it is used to care for skin with visible signs of aging. Conclusions. Vitamin A (in the form of retinol or retinyl palmitate) is one of the most common vitamins found in cosmetic preparations, especially those used in facial skin care, where its anti-aging properties are used. Key words: vitamin A, skin care, acne, skin aging |