[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][=C][C][=Branch1][#Branch1][=C][C][=C][Ring1][=Branch1][O][O]"}, {"from": "gpt", "value": "The molecule is a topical lightening product found in  OTC products, and is used to correct skin discoloration associated with disorders of hyperpigmentation including melasma, post-inflammatory hyperpigmention, sunspots, and freckles. It can be used alone, but is more frequently found in combination with other agents such as alpha-hydroxy acids, corticosteroids, retinoids, or sunscreen.    Hydroquinone has come under scrutiny due to several complications associated with its use, including dermal irritation, exogenous onchronosis, and carginogenicity. As a result of these concerns, hydroquinone has been banned in the EU and UK."}]