Diferenças entre desodorante e antitranspirante 
Autor: Samantha Feehily | Publicado: 2013-08-22T07:46:00-07:00

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Enquanto
um mata as bactérias, o outro inibe a sudorese 



O&nbsp;suor&nbsp;é o
recurso encontrado pelas&nbsp;glândulas sudoríparas&nbsp;para manter temperatura
do corpo estável. Esta excreção é composta principalmente por água e pode
liberar odores nada agradáveis. Para disfarçá-los, a indústria cosmética
desenvolveu diversos&nbsp;tipos de desodorantes e antitranspirantes,
mas, diante de tantas opções, como saber qual é a melhor?

As glândulas sudoríparas se
dividem em écrinas, que eliminam apenas água, e apócrinas, responsáveis pela
excreção de sais, restos celulares e do metabolismo, substâncias que exalam
um&nbsp;cheiro ruim&nbsp;quando em contato com as bactérias e fungos
presentes no ar. Estas glândulas estão localizadas principalmente nas axilas, o
que explica o famoso “cê-cê”.

Desodorante
x antitranspirante

Desodorantes&nbsp;

Além de camuflar o odor, os
antitranspirantes inibem a produção de suor, contêm ativos que diminuem a
concentração das bactérias que decompõem o suor, e podem ou não possuir
fragrância para&nbsp;camuflar o odor.

Antitranspirantes
e antiperspirantes

Além dos compostos que mantém as
bactérias e disfarçam o mau cheiro, os antitranspirantes e antiperspirantes
possuem substâncias que obstruem temporariamente as glândulas sudoríparas
e&nbsp;diminuem a quantidade de suor&nbsp;produzida.

Spray x
aerossol&nbsp;

Após escolher entre desodorantes
e antitranspirantes, chegou a hora de decidir entre as versões disponíveis no
mercado. De acordo com a dermatologista, a diferença entre aerossol, roll-on,
spray e barra está apenas nos veículos utilizados na formulação, e não nos
princípios ativos.&nbsp;Aerossol e spray, em geral usam loções à base de
álcool e água, enquanto o roll-on costuma utilizar um serum aquoso e as versões
em barra, os silicones.

A eficácia é dada pelos ativos
usados nas fórmulas e não por seus veículos. A escolha de uma ou outra versão
depende mais do sensorial das usuárias. Uma pele mais seca se beneficia das
versões em barra ou em creme, por exemplo, mais oleosas. Já as que gostam que o
desodorante evapore rápido, vão preferir os aerossóis ou sprays.



O álcool presente em algumas
formulações pode levar ao&nbsp;ressecamento da pele, causando irritação
e até lesões. Nem todas as mulheres são sensíveis e esses produtos, mas ao
apresentar desconforto, suspenda o uso e prefira as versões se álcool.

Manchas
amareladas&nbsp;

É bastante comum que após o uso
prolongado dos desodorantes em aerossol surjam&nbsp;placas “duras” e
amareladas nas roupas. Isso acontece devido à presença de uma substância
chamada&nbsp;cloridroxialantoinato de alumínio&nbsp;que se deposita na
pele após a evaporação ou absorção do veículo (o desodorante em si) e deixa
resíduos nas peças.

Suor
excessivo&nbsp;

A&nbsp;sudorese excessiva&nbsp;pode
incomodar bastante, além de criar situações constrangedoras, mas pode ser amenizada
com uma medida simples. Se o suor é excessivo ao ponto de constranger ou
limitar as atividades, o melhor tratamento conhecido hoje é a aplicação da
toxina botulínica, que diminui a quantidade de suor excretada.