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i got this from wikipedia.com
"Hydroquinone can be an unstable ingredient in cosmetic formulations. When exposed to air or sunlight it can turn a strange shade of brown. Therefore, when you are considering a hydroquinone product, it must be packaged in a non-transparent container that minimizes light and air exposure. Hydroquinone products packaged in jars are not recommended because they become ineffective shortly after opening."
the jar of hydroquinone that i had was definitively exposed to air every time i opened it. is this why it didnt do anything for me? does anyone know any good hydroquinone brands to buy?
"Hydroquinone can be an unstable ingredient in cosmetic formulations. When exposed to air or sunlight it can turn a strange shade of brown. Therefore, when you are considering a hydroquinone product, it must be packaged in a non-transparent container that minimizes light and air exposure. Hydroquinone products packaged in jars are not recommended because they become ineffective shortly after opening."
the jar of hydroquinone that i had was definitively exposed to air every time i opened it. is this why it didnt do anything for me? does anyone know any good hydroquinone brands to buy?