Paraben

Paraben
(Wikipedia)

What is mean by Paraben? Guess what? Parabens are a group of chemicals widely used as preservatives in the cosmetic and pharmaceutical industries.

Their efficacy as preservatives, in combination with their low cost, their long history of safe use—at least to the extent that scientific studies have not proven they are harmful—and the unproven efficacy of natural ingredients like grapefruit seed extract, probably explains why parabens are so commonplace. They are becoming increasingly controversial, however, and some organizations which adhere to the precautionary principle object to their everyday use

Why you need to know? In the market, almost all of the products added in __paraben into te ingredients.
Common parabens always after methyl, ethyl, propyl, and butyl. Less common parabens include isobutyl, isopropyl, benzyl and their sodium salts. The general chemical structure of a paraben is shown at top right, where R symbolizes an alkyl group.

it might cause Allergic reactions or breast cancer.

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