In skin treatments, what is the purpose of hydroquinone?

Hydroquinone is primarily used for its skin-lightening properties, making it an effective treatment for hyperpigmentation. This compound works by inhibiting an enzyme called tyrosinase, which is crucial in the production of melanin, the pigment responsible for skin color. By reducing melanin production, hydroquinone can help diminish dark spots, age spots, and other forms of pigmentation that might affect skin tone. This ability to specifically target excess pigmentation is why hydroquinone is widely used in skincare products designed to promote a more even and brighter complexion.

The other choices, while relevant to skin treatments, do not accurately describe the main purpose of hydroquinone. Hydration refers to retaining moisture in the skin, inflammation reduction involves calming irritated skin, and firming pertains to improving skin elasticity and tightness. These functions are achieved through different ingredients and treatments that serve specific purposes distinct from the effects of hydroquinone.