“Hydroquinone was removed from OTC products as a result of concerns over ... Before the ban in the U.S., hydroquinone was available to buy in a 2% concentration. In regions where skin bleaching ...

Even though hydroquinone is approved in only a 2% concentration from over the-counter (OTC) products, it’s best to follow ...

hydroquinone is banned as an ingredient to be purchased over-the-counter and doctors are only allowed to prescribe a concentration less than 2% due to the medical implications it can have on the ...

Some authors suggest continuation of low-dose, over-the-counter 2% hydroquinone for maintenance therapy after an initial treatment period (Pathak, Fitzpatrick, & Kraus, 1986). The lengthy time ...