Deoxyarbutin is widely used in cosmetic and skincare formulations for its skin-lightening properties. It works by inhibiting tyrosinase, the enzyme involved in melanin production, which helps reduce hyperpigmentation, dark spots, and uneven skin tone. Compared to other brightening agents like hydroquinone, deoxyarbutin is considered more stable and less irritating, making it suitable for long-term use in sensitive skin products. It is commonly found in serums, creams, and lotions aimed at achieving a brighter, more even complexion. Its effectiveness and favorable safety profile have made it a popular ingredient in over-the-counter and professional skin care lines.