HTHQ is widely used in the cosmetics and skincare industry as a potent antioxidant and skin brightening agent. It effectively inhibits melanin production, making it a key ingredient in products aimed at reducing hyperpigmentation, dark spots, and uneven skin tone. Its antioxidant properties help protect the skin from oxidative stress caused by environmental factors like UV radiation and pollution, thereby preventing premature aging. Additionally, HTHQ is incorporated into anti-aging formulations to improve skin elasticity and texture. Its stability and efficacy at low concentrations make it a preferred choice in serums, creams, and lotions designed for skin brightening and rejuvenation.