Análise da eficácia e estabilidade de xampus contendo pantenol e vitamina A utilizados para o crescimento dos fios capilares.

Abstract

The panthenol is a pro-vitamin which corresponds to a biologically active analogue of alcohol pantothenic acid (vitamin B5). In hair care products seems to have a special value, particularly as conditioner, avoiding breaks. Vitamin A is essential for the development of the hair and to the skin and nails. It normalize keratinization and inhibits and reduces the scaling of the scalp. In an attempt to get long, bulky and strong hair, many people end up buying and using empirically any product that guarantees the desired effects. Popularly one can find several myths and revenues related to the subject; among them has become common to use the so-called 'shampoo pump' consisting of the association of panthenol (Bepantol®) and vitamin A (Monovin A®) the common shampoo, promising hair growth of up to five centimeters per month. Given the theoretical properties of these vitamins, as well as its popular use, this study aimed to evaluate the effectiveness and stability of shampoos after the incorporation of panthenol and vitamin A with the growth of capillaries purpose wires. Volunteers were selected according to the inclusion criteria of the study, present in the Informed Consent, to use the shampoo and thus evaluate the increase in growth rate of the hair. Preliminary stability (EP) studies were conducted and long term (ELD). In these tests the samples analyzed were analyzed for the organoleptic characteristics, centrifuge test, pH, viscosity, foam stability and cleaning power. It was found that the shampoo in the study had no effect on hair growth rate of the participants. Assays EP and ELD were effective in evaluating the instability of the shampoo after incorporation of panthenol and vitamin A, showing that the cleaning power of the preparation integrity, consistency and organoleptic characteristics were affected. There is a need to assess the effects of prolonged use on the hair on the dermatological effectiveness, since there is a technical lead that guarantees the quality of shampoo 'pump', let alone the safety of users.