“There’s also a more worrisome side effect of hydroquinone use known as exogenous ochronosis,” he adds. Exogenous ochronosis is a type of skin coloration where the skin darkens and ...

However, while hydroquinone developed a bold reputation for skin lightening intimately tied to colourism, it has also been exposed to overuse leading to medical complications such as ochronosis ...

Hydroquinone ... skin. Avoid eyes, ears, mouth, angle of nose, mucous membranes, sun, UV light. Skin types V and VI (possible undesirable excessive bleaching). Discontinue if ochronosis, chemical ...